From what I understand, the most reputation one can gain in one day from votes is 200 points. This limit ignores the bounties earned, so that it is possible to earn for example 250 points if a 50 points bounty is earned.
From what I understand, if one offers a bounty of, say 50 point, then that the net gain is maximum 150 points.
I have a suggestion: By offering bounties on questions, the bounty raises the daily limit by the amount offered. So if one offers a 50 points bounty, then one can still have a net gain of 200 points.
I believe that this would encourage people to keep answering questions even after they reach the daily limit
Also, I think that this would encourage more bounties and therefore possibly encourage better answers. In particular it would encourage awarding existing answers with a bounty. I don't see this causing an explosion in bounties since it only applies when the daily limit is reached.
If the general suggestion of raising the limit by offering any bounty is not a good one, then I suggest that specifically awarding bounties to existing answers will raise limit.
I understand that part of this suggestion is the assumption that more bounties are better. This might not be the case(?)