I want to start a bot where its a fixed price, human vetted, and if the content quality isnt there; it is considered a donation and powered up. I dont have enough steem power or time to make this a reality, but it would certainly be an excellent way of taking sbd from people who only use it to upvote posts of questionable quality.
You'd need to have better returns than the ones that are less strict on content - all 400 of them :)
Therein lies the problem. It wouldn't really be a bot... it'd be paid, manual curation; which I'm not so sure would be admired.
This is the model @thundercurator uses.