It isn't enough to talk to them, to review their output and conclude that they are most likely friendly. Doing so and contributing money is aking to letting an AI, that is not provably friendly, out of the box. They either have to prove that they are friendly or make all their work transparent. Otherwise the right thing to do is to label them as terrorists and tell them to fuck off.

I think the "mostly harmless" phrase still applies. These look like kids with firecrackers. The folk we should watch out for are more likely to be the Chinese, the military, hedge funds - and so on.