Cant find info how much is paid from delegation :(
https://steemit.com/steemit/@boomerang/boomerang-a-new-steemit-bid-bot-for-all-steemians-whitepaper

Im also thinking about paying curation as bonus but the reward is too small currently to implement it.

On the other hand Ive sent some steem to Hive account@steembasicincome for some delegators and plan to continue it:)