I think it is cool to give something free to the community and I applaud that, but you also have to put warnings up to warn people against the dangers of using a system like this. (Also add some kind of disclaimer to protect yourself, if somebody misuse your system)

It is still early days and you still have a lot of things that need some fine tuning, so expect some negative feedback. I think "exchanges" need some competition to keep them on their toes, but I know the regulators will come looking for you.. once this grows big enough for them to take notice.