(A possible downside I see is that it might somehow do the opposite—that voting will feel like something that is reinforced in a conditioning sense, so that users with more voting power will get more reinforcers since they do click->reward more times, and that this will actually give them a habit of wanting to apply the maximum vote more than they otherwise would because it feels satisfying to vote repeatedly. This isn’t clearly a lot worse than the situation we have now, where you always vote maximum with no option.)
(A possible downside I see is that it might somehow do the opposite—that voting will feel like something that is reinforced in a conditioning sense, so that users with more voting power will get more reinforcers since they do click->reward more times, and that this will actually give them a habit of wanting to apply the maximum vote more than they otherwise would because it feels satisfying to vote repeatedly. This isn’t clearly a lot worse than the situation we have now, where you always vote maximum with no option.)