>>55860154The bans are voted on democratically. You don't have to be a "pro", you just have to prove your skill empirically by getting the prerequisites to vote (typically that involves creating a fresh new account and going 15 wins and 0 losses or 20 wins and 2 losses).
If you can prove that you know what you're talking about by winning even at the upper end of the ladder, you're allowed to voice your opinion on whether something should be banned or not. Not every suspect test ends in a ban. Of the last 3 suspect tests in Gen 9 OU, 2 of them ended in no ban (Kyurem and Gouging Fire) while 1 ended in a ban (Volcarona).
