I have just start looking at bounty questions and I don't know if some answers existed before posting the bounty. Maybe the OP is busy and someone has already answer the question he was asking and there is no point in me answering.
P.S. I could calculate the time in what the answers were posted, but first I would have to read bounty FAQ to see how long bounty last. In stackoverflow era nobody is reading any manual. Most user won't waste time calculating the time and will just ignore the question as I am doing right now.