Ok, fair enough...but I still don't think that abstentions should help something get banned as they did with D-N. Since banning is an extreme measure, I don't think it's unreasonable to say that the supermajority has to be of all voters explicitly voting "Uber" before banning something. I change my stance from advocating removing abstentions to just making abstentions count in the total vote tally (but not for one side or the other).
That makes just as little sense though. If a user doesn't want to vote on a Pokemon, why should their lack of a vote make it harder for a Pokemon to get banned. With what you're proposing an abstention may as well be called a vote for OU. If someone doesn't want to vote on something, their lack of a vote should not be counted towards anything. In a vote of 20 people if 10 people think a pokemon is uber, 6 think it's OU and 4 want to vote on that particular pokemon, how does it make sense to keep that Pokemon OU?
ps: agreeing with obi's proposal

























