I'm gonna just put some arguments out there and see if I develop an opinion on how to vote somewhere along the way. Who knows, maybe someone else will too.
I don't think SD Gliscor adds much of a problem factor here. The dominant set is bulky spiker, most of the issues raised with it relate to spikes as well as its ability to force progress over time, and its longevity is really what sets it apart. SD scor is a really good stallbreaker, but I don't know that I'd count it in the top-5 problems stall has this gen. So these points will focus on bulky spiky versions.
First off, Gliscor without Gholdengo is a menace in its own right. Hazards can be removed against Gliscor (Corv helps a lot), but Gliscor's longevity means that it can re-set them later. Most hazard removers not named Corviknight don't like switching into scor and eating a knock or toxic. The best hazard remover in the tier is Tusk, which even with Ice Spinner isn't a great solution because Gliscor can usually outlast it, and it gets a LOT of opportunities to come in and start spiking.
The best argument against a ban IMO is that it won't fix the unstoppable hazard stack problem, as the spiker role could be filled by other pokemon (why are there so many spikers), and we'd lose Gliscor's positive influence on the meta for no benefit. As one of the tier's premier defensive pokemon, scor has helped push back against HO and made more defensive structures viable. It's sort of a cost-benefit analysis, where the cost is something and the benefit is nothing.
Gliscor being used as a counter to itself doesn't necessarily mean it's broken. Lando-T was one of the most common Lando-T switchins for most of its reign, and Ferrothorn was used to counter itself on some rain teams back in Gen 5. There are other options for dealing with Gliscor, although they have to be used really carefully, and actually knocking out a Gliscor is a long and arduous process. Still, it seems to me pretty similar to Pex from past gens, it can be dealt with, but if you play stupidly with your checks and counters it will rapidly become unbeatable. That said, Gliscor vs. Gliscor is definitely a more painful process than Lando vs. Lando. On the other hand, I haven't seen Tera Ice Tera Blast to try and win the 1v1 (it is a terrible idea)
Both of the arguments against a ban have solid counter arguments, the tier has plenty of other ground types, including a ground-flying type that has been an exceptional bulky mon in prior gens, and while the other spikers are real and Dengo is the only really unique part of gen 9's oppressive hazard stack, none of them have Gliscor's longevity and at least some of them are easier for Tusk to deal with.
Speaking of Tusk, banning Gliscor might have an indirect effect of nerfing hazard stack by having more teams use Tusk as their ground type. Something to consider.
Based on how the survey went, I'd consider it unlikely for Gholdengo to get banned if Gliscor isn't. It would be contingent on people who want to ban scor instead of dengo voting for a dengo ban as a compromise, and I don't know if there'll be enough support for that. This doesn't necessarily make dengo irrelevant, the cost-benefit argument still applies, but it should be considered.
Gholdengo might also be more likely to be banned if Gliscor is, since continued hazard issues would more definitively prove that Gholdengo's the issue. Question for the Council, in the event of Gliscor being banned and Gholdengo remaining a problem and later being banned, what would be the odds of Gliscor returning to the tier? (I don't know if reopening Gliscor in that case would be a good idea)
Gliscor's ability to spread knock off is a buff to hazard-stacking teams.
Court Change Cinderace and Great Tusk are both reasonably capable hazard removers that fit on a variety of teams. The lack of defog isn't necessarily an issue.
It is not infeasible for Gliscor to get up three layers of spikes, get court changed, and then get up three layers again, rendering Court Change useless, as long as scor's team doesn't need to remove hazards.
I think that for people who believe hazards are a problem and need to be nerfed, even if the optimal outcome is to ban Gholdengo and keep Gliscor, the optimal decision in this vote is probably still to ban Gliscor as the hazard meta may become entrenched with people who support bans to weaken it being too split on what to ban.
I remain significantly too ambivalent to get reqs. Mission failed.
I don't think SD Gliscor adds much of a problem factor here. The dominant set is bulky spiker, most of the issues raised with it relate to spikes as well as its ability to force progress over time, and its longevity is really what sets it apart. SD scor is a really good stallbreaker, but I don't know that I'd count it in the top-5 problems stall has this gen. So these points will focus on bulky spiky versions.
First off, Gliscor without Gholdengo is a menace in its own right. Hazards can be removed against Gliscor (Corv helps a lot), but Gliscor's longevity means that it can re-set them later. Most hazard removers not named Corviknight don't like switching into scor and eating a knock or toxic. The best hazard remover in the tier is Tusk, which even with Ice Spinner isn't a great solution because Gliscor can usually outlast it, and it gets a LOT of opportunities to come in and start spiking.
The best argument against a ban IMO is that it won't fix the unstoppable hazard stack problem, as the spiker role could be filled by other pokemon (why are there so many spikers), and we'd lose Gliscor's positive influence on the meta for no benefit. As one of the tier's premier defensive pokemon, scor has helped push back against HO and made more defensive structures viable. It's sort of a cost-benefit analysis, where the cost is something and the benefit is nothing.
Gliscor being used as a counter to itself doesn't necessarily mean it's broken. Lando-T was one of the most common Lando-T switchins for most of its reign, and Ferrothorn was used to counter itself on some rain teams back in Gen 5. There are other options for dealing with Gliscor, although they have to be used really carefully, and actually knocking out a Gliscor is a long and arduous process. Still, it seems to me pretty similar to Pex from past gens, it can be dealt with, but if you play stupidly with your checks and counters it will rapidly become unbeatable. That said, Gliscor vs. Gliscor is definitely a more painful process than Lando vs. Lando. On the other hand, I haven't seen Tera Ice Tera Blast to try and win the 1v1 (it is a terrible idea)
Both of the arguments against a ban have solid counter arguments, the tier has plenty of other ground types, including a ground-flying type that has been an exceptional bulky mon in prior gens, and while the other spikers are real and Dengo is the only really unique part of gen 9's oppressive hazard stack, none of them have Gliscor's longevity and at least some of them are easier for Tusk to deal with.
Speaking of Tusk, banning Gliscor might have an indirect effect of nerfing hazard stack by having more teams use Tusk as their ground type. Something to consider.
Based on how the survey went, I'd consider it unlikely for Gholdengo to get banned if Gliscor isn't. It would be contingent on people who want to ban scor instead of dengo voting for a dengo ban as a compromise, and I don't know if there'll be enough support for that. This doesn't necessarily make dengo irrelevant, the cost-benefit argument still applies, but it should be considered.
Gholdengo might also be more likely to be banned if Gliscor is, since continued hazard issues would more definitively prove that Gholdengo's the issue. Question for the Council, in the event of Gliscor being banned and Gholdengo remaining a problem and later being banned, what would be the odds of Gliscor returning to the tier? (I don't know if reopening Gliscor in that case would be a good idea)
Gliscor's ability to spread knock off is a buff to hazard-stacking teams.
Court Change Cinderace and Great Tusk are both reasonably capable hazard removers that fit on a variety of teams. The lack of defog isn't necessarily an issue.
It is not infeasible for Gliscor to get up three layers of spikes, get court changed, and then get up three layers again, rendering Court Change useless, as long as scor's team doesn't need to remove hazards.
I think that for people who believe hazards are a problem and need to be nerfed, even if the optimal outcome is to ban Gholdengo and keep Gliscor, the optimal decision in this vote is probably still to ban Gliscor as the hazard meta may become entrenched with people who support bans to weaken it being too split on what to ban.
I remain significantly too ambivalent to get reqs. Mission failed.