(I don't know if they did already or not) and it's peer reviewed and the community says the code is secure I will trust it 100%.
It's what I do with PGP right now, it's what I do with Tor right now, it's what I do with TrueCrypt right now, it's what I do with Bitcoin right now. More importantly it's what people selling drugs on Silk Road do and why after 2 years of operating they're still free and alive.
Peer review is the best tool that we have when it comes to trust. Well either that or you live in a hole somewhere in a forest without internet or any other form of communication with the outside world.