Nah, some people will never learn any lessons. The writing here was all over the walls. This guy not only was anon -which is the first no-no-, but also has, literally, the ability to communicate at the human level that a donkey will surpass by miles. Plus no vision whatsoever. Your typical scammer, actually (remember coinville or viorville or whatever the fuck he called it?). But you guys swallowed because you wanted to make callas scrambled... wow. Anyway, the project was dead for quite a while already so this is sort of the official declaration of it. He got his few BTC and is more than happy to continue living like the turd, jerkoff reject he is, in the basement of his parents".
Unfortunately, no lessons learned anywhere. You WILL indeed back quite a few more of these... One more to add to the list. He's already back with another scam(s) under different handles of course, but his "social ability" will be evident soon enough.
I joined this project because it was providing the first decentralized (outside of telco network) phone calls. So you can bypass a) centralized spy corps like Skype that handled the comms part b) centralized payments systems that handle the $ part. The dev did deliver this tech working. His weak point was not following through with everything else, and also there was an unhealthy dose of serious hate campaign from Opal overlord bassguitarman that the dev had to fight constantly.
Project like this, if the dev *had* connected with other people as Bitcoin Carpenter was doing, then obviously this project could have been massive.
Who knows, might still happen - but I would recommend reform the project with new name and just the international calling parts as that's useful to a lot of people (those who do a lot of international calls know what im talking about)