There is no discussion requirement but there needs to be a reasonable foundation for nominations. I did miss a couple abilities and that is being fixed, but some abilities like flame boost and heatproof will not be slated.
Would you mind explaining what exactly you mean be 'a reasonable foundation for nominations'? I ask because I seem to be the only one not understanding it since all the nominations that didn't make the ballot were made by me, and I'd like to have a better grasp on this for future rounds. I can understand Flare Boost since I even said in my nomination that I wasn't sure about it and discussion really cleared up why Guts is just flat out better, but the other ones I felt I tried to explain as best as I could and I don't understand the rationale for at least putting them up for a vote.
The only argument I saw against Heatproof was Jimera0 stating that "a single extra resistance isn’t going to change the game terribly often" which is simply unknowable due to the fact Bronzong is the only thing that gets it and it has the superior levitate and in any metagame where you can give any ability to anything, people are going to use Flash Fire for the immunity or Thick Fat for the ice resistance. Every single other resistance or immunity granting ability is A Tier. Why is heatproof so different it doesn't even merit a vote? In regards to filter and solid rock, the onsite abilitydex apparently views them so highly that it begins its description of Solid Rock's competitive use by stating it's "another fantastic ability that is wasted." I don't know what the process is for getting ability analyses on site, but does an ability Smogon itself describes as 'fantastic' not even deserve a vote for A tier?
The one I have the biggest problem with however is Solar Power. The two arguments against it I saw were that it puts you on too fast a timer with the 12.5% HP loss per turn and that life orb both gives a similar boost without hurting you if you don't attack and can't be run well in conjunction with Solar Power. However, if you're so worried about the timer or recoil, if you run Solar Power and leftovers you're losing only 6.25% HP per turn (meaning you'll survive 16 turns max instead of 10 attacks with life orb), still have the power of choice specs without being locked into a move, and actually gain back HP if they change the whether on you to take away your power boost. Plus, if you run it with specs, anything with more than base 53 spAtk can have more special attack than an itemless Deoxys-A. Frankly from my perspective the ability either makes you less frail than guts does (since you can get the boost even if you're running leftovers and will thus last longer than something with a status orb) or is more reliable than guts is (since you can control to an extent whether the sun is up but cannot control whether you're statused if you don't run a status orb). Why doesn't this deserve a vote?
tl;dr: I feel like, with the exception of flare boost, the abilities I nominated are great abilities (or at least up to the standards of A Tier) that just happen to have really crappy distribution. Heatproof is given to one thing that has a better ability and the holders of Solid Rock, Filter, and Solar Power are all deeply flawed by the standards of the current OU metagame. I would really appreciate it if you explained what I would have needed to do in my nominations to give them 'a reasonable foundation' so I can do better next round.
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Anyway, on to my votes:
Harvest- Change Tier
Compound Eyes- Change Tier
No Guard- Change Tier
Marvel Scale- Change Tier
Multitype (Do Not Know Typing)-Change Tier
Multitype (Know Typing)- Do Not Change Tier
Static- Change Tier
Flame Body-Change Tier
Leaf Guard- Change Tier
Bad Dreams- Change Tier
