Vote incentivisation for BPs used to be (or is still) rampant in Lisk. More generally, vote trading / exchange is a bad idea because it's value-agnostic ie. corrupt practice. BPs aside, the line blurs when it comes to voting to distribute resources in a social network. Relevant to vote maximisation, what do you think about this: https://steemit.com/steem/@kevinwong/distributing-wealth-should-be-equally-profitable ? Sorry there are no sophisticated proofs and such lol, just more like a rule of thumb / first principal thing.

Appreciate the attempt at some formal proof @anyx. Will spend some time on the questions :)