Lets assume we vote DNB on gliscor.... what makes you so certain we will vote ban on gholdengo... people may just decide "lol suspect kingambit instead" or many people might disagree. Then what? We should be thinking about the present not the future for the health of the meta... spending 2 extra weeks playing this meta isnt smth many want to do
Here's the issue with this thinking. The metagame HAS BEEN (and will still be) incredibly flawed when it comes to hazard control even IF we ban Gliscor. Let's think about the present of the metagame right now; hazard stack and grass spam offense.
Hazard stack does love Gliscor in terms of role compression, sure, but Gliscor is like a double-edged sword for hazard stack. Yes, Gliscor can knock off and pose practical problems, but opposing Gliscor prevents knock off from other strong utility mons you might see on these archetypes such as Clefable, Great Tusk, and Mandibuzz, as well as some other more offensive, fringe options such as Meowscarada and Iron Valiant. This is NOT to say that hazard stack does not benefit from hazard stack (which it does), but it suggests that Gliscor is not necessarily the sole drive of hazard stack; I could, as well as many others (come on now, we did the same thing before DLC) build Ting-Lu, Gholdengo, defensive core, double pivot and still get good results.
My overall point is this; Gliscor is a great teammate to an archetype that is overall unhealthy, but it isn't Gliscor's fault and banning Gliscor would do next to nothing.
Now, as many others keep pointing out, this thread is exclusively about Gliscor, not Gholdengo, but I think there is still some relevance I need to bring up here by making these two distinctions I made in an earlier post:
a) Gliscor is responsible for setting up the hazards and potentially 1v1ing Great Tusk and
b) Gholdengo allows the hazards to stay up.
Is there anything unhealthy about setting up hazards and 1v1ing options of hazard removal? Absolutely not, we have seen this in previous generations, especially with toxic being even more widely distributed. Secondly, we see this with other hazard removal in Samurott-Hisui, Glimmora, and even Ting-Lu to an extent (ruination really makes Great Tusk hate itself and tera ghost spinblocks all the same). Gliscor does similar things that TIng-Lu does but with substantially less bulk for better longevity (which, for the record, the longevity part can be emulated with wish support), but that begs the question; why should we ban Gliscor if it effectively does nothing towards the meta?
In fact, there are even potential arguments (albeit somewhat weak) that banning Gliscor could make hazard stacking WORSE. Think of how knock off got redistributed; what are the only two reliable answers into knock off currently? Clefable and Gliscor. Yes, these arguments are flawed in some ways because there are mons with knock off that threaten these, but they do help against other options. This argument is still weak, however, mainly because of the last part with there being knock off users that can get through Clefable and Gliscor, but there are some potential good arguments to this overall that I am sure someone that has strong faith in could explain better than me.
Lastly, which is another thing that people have mentioned (okay, it's going to mention Gholdengo just briefly, but it isn't about Gholdengo, please don't flame me) is that Gliscor is still a problem without Gholdengo.
Gliscor on its own has tons of counters. Think defog Corviknight, Hatterene, taunt, substitute, swords dance, etc. All of these exploit Gliscor's reliance on protect and/or toxic to effectively keep hazards up. Does your team have stealth rock? If you pair it with a setup sweeper, you can pose major problems for Gliscor by forcing it out and not allowing it to protect to heal back any damage it takes.
There is one good argument against this, however, and it is the question of "does forcing Gliscor out actually hurt the Gliscor user? You aren't making progress regardless." This is by far the strongest argument I have seen against Gliscor, but the truth is that yes, it is possible to still force progress by forcing something out. Think setup sweepers with knock off, such as Ogerpon-Wellspring, Weavile, Iron Valiant (possibly), Samurott-Hisui, Tornadus-Therian, and even mons such as Walking Wake carrying knock off and knock off Empoleon to some degree.
I would also like to mention that the format of the overall suspect kind of screws over Gliscor. We are supposed to look solely at Gliscor in the current metagame because it is a support mon meaning it relies on its teammates, even if it means Gholdengo is actually the problem, which is detrimental to the overall perception of it, but even going beyond that, there are still good arguments to keep Gliscor in the tier, which I tried to highlight above.
Overall, there are ways to actually play around Gliscor, and I don't think it is just to ban a mon that just does what other mons do, just slightly more splashable, just because it is a support mon that supports hazard stack overall.