Talking about your project on bitcointalk is not really a great idea, if it was for people here they would have said satoshi was an idiot for working on bitcoin before he released it if he ended up asking their advice here and they would have laughed at his face and few years later try to get as much bitcoin as they can.
However you have to actually work on something a bit further than just half a page of explanation before you can get a good review as well, even if what you are working on is bad or great it needs to be a bit further developed in, otherwise it is just an idea and we all know ideas worth absolutely zero and all ideas are horrible until execution shows how it is not bad. So I would say work on this a bit more, have some design and some details and share it again, that might get different results.
I do agree, we have nothing to discuss if there will be no demo version at least of what he is talking about. Because if only idea, then the chance that it will not ever materialize is always there. So until he can offer a much well founded concept along with the actual app, then that's the time that we can discuss about this idea of him.