Great Site, I think you should add an option to pay to multiple people answering a question because sometimes one gets more than one right answer and it's unfair to choose only one.
You mean give the member that posted the question the choice to reward multiple people if they provide right answers?
So if the reward is 0.01 BTC
If he chooses to reward 2 people each one will get 0.005 BTC , if he chooses 3 people each will get 0.00033 BTC e.t.c. ?
I believe that the current method is fine and works good.
First one that submits the information that someone is looking for gets rewarded with the whole bitcoin bounty.
So far the maximum reward that has been given by a member is 5$ in bitcoin.