I quite like this idea and could maybe see myself posting on a site like this. What I don't like is the "500 or less" part, at that point it becomes a bidding

I quite like this idea and could maybe see myself posting on a site like this. What I don't like is the "500 or less" part, at that point it becomes a bidding war and will inevitably be taken over by India-based devs just like every other coder for hire site.