if there are scientists who do that, and who have read Popper and Feynman, then they did not understand what they read.

Right, and if that's the case, then Oscar's characterization was correct, and not attributing any positions to Feynman and Popper.

Oscar was just summarizing Eliezer (with caveats like "something like"), it seems a bit like a wate of time to attack his summary in detail, where instead you could just find from which of Eliezer's writings Oscar formed that impression, and point out any errors at their source.

My vague recollection of Eliezer's position would be something like "Here are the kind of mistakes that I made, that listening to Feynman didn't prevent, and that scientists still make". But again, that's just my vague summary, no point in trying to take it apart.