Yeah, that's one of Yudkowsky's fears.

I'm not going to take his fears as gospel, as he's spent so long focussing on his fear there's a danger of availability heuristic/attention biases having him take the worst case for everything.

I'm still going to promote caution, as the more potent a tech the greater the downside of being wrong, but it currently looks like we can cooperate with each other in this IRL iterated prisoner's dilemma.