Many people have requested a plug-in to allow a user to pay per answers, but so far there is nothing.
I get over 100 questions a day on my site, but unfortunately, the people that help me answer questions and I don't have enough time to answer all the questions.
My idea is to allow a user post a questions for free, then pay (in front) a flat minimum amount ($1, $2 or $3) to move the question to the top of the list.
Also, if possible pay (in front) a flat rate ($5) to get question answer.
I'm offering $100 to develop the plug-in, hopefully, someone else can add more money and then have the plug-in free here.