This comment on the EA Forum gives a lot of additional information, by someone who attempted to identify each case: https://forum.effectivealtruism.org/posts/7b

This comment on the EA Forum gives a lot of additional information, by someone who attempted to identify each case: https://forum.effectivealtruism.org/posts/7b9ZDTAYQY9k6FZHS/abuse-in-lesswrong-and-rationalist-communities-in-bloomberg?commentId=BYvgpTxBTCZJQqHCz https://forum.effectivealtruism.org/posts/7b9ZDTAYQY9k6FZHS/... Several of the accounts turned out to concern the same person, Michael Vassar, who was central ~10y ago but kicked out for this and other harmful behavior, and now describes himself as anti-EA. On the other hand, the comment treats the cases they can't identify as not concerning from a community perspective ("it's very unclear from this what actions anyone could or should have taken") and I don't endorse that.