Find a Trusted partner from some other country, Run project on his details.
This was one of my favourite solutions, but i realized that it not the same if i show my REAL identity.
There is a third option which erases most of the cons of anonymity you listed. Go anonymous in that your IRL is never divulged, but create a strong identity and presence with your forum handle. Be active and have great customer service and do everything you can to reach out to your userbase and the community. Be as transparent as you can possibly be with revealing yourself, use cryptographically "provable" techniques for your service whenever possible. Help users verify things.
It may take longer, but you will gain trust and reputation and eventually have a flourishing service.
(At which point you can pull a Pirate and disappear with our monies, having pulled a very successful long con.)
+1
now on this forum i have a little more then 70 messages, so i will surely keep posting and "living" on this forum but till now i dont have a "strong forum" identity, and obviously i dont want to spam in order to obtain it

regarding site support, it will be one of the most important focuses of my staff.
i know that when the site will be online and working, i will build my strong (real) identity by answering to all critics and support messages and by explaining my project here on this forum, but the only thing that will make user trust my site since opening is to show my identity