I have posted a question in Stack exchange over a month ago and also started a bounty; which was ended as well but didn't get a solution.
I understand the question wasn't reached to the contributors because of incomplete detail, etc..., but I think the questioner should get a message something like improvement the way of asking questions if it wasn't good.
I really felt bad not received a solution with loss of bounty. Stack exchange should consider refunding the bounty if not got a solution for the question set as a bounty.
Please don't take me mistake, just posting what I have thought about Stack exchange. Thanks.