The site needs to be more usable, and the experience should be just a tad better. This could be done in several ways.
1) Add categories for several topics, this comes with filters of course. It will also be helpful to add an option to hide all answered questions.
2) Set a time limit, upon which the pay out automatically, well pays out.
3) Add a system to sort the questions in order of prize.
If we’d add social media marketing on Twitter, twetch, … etc, we would experience explosive growth in a very short time.