You'd think it'd be 1 vote = 1 vote but the geniuses over at reddit need to ensure goodthink at all times.
It amuses me that this completely overlooked the fact they could have just pinned the damn thing at the top like most subreddits do for important shit and overridden the up/down vote crap ranking. Of course, that also would mean the vote score would be always visible. And boy would it make Trump mad to see his AMA not have an absurdly high upvote count...