Less Wrong memes think that person AIs won't be sufficiently person-like but they sort of tend to assume that conclusion rather than argue for it, which causes memes that aren't familiar with Less Wrong memes to wonder why Less Wrong memes are so incredibly confident that all AIs will necessarily act like autistic OCD people without any possibility at all of acting like normal reasonable people.

A whole lot of the sequences are dedicated to outlining just how reasonably normal people don't act. I would want any Strong AI in charge of our fates to be person-like in that it is aware of what humans want in a way that we would accept, because the alternative to that is probably disaster, but I wouldn't want one to be person-like in that its inductive biases are more like a human's than an ideal Bayesian reasoner's, or that it reasons about moral issues the way humans do intuitively, because our biases are often massively inappropriate, and our moral intuitions incoherent.