I think what's needed isn't further information as much as better intuitions, and getting those isn't just a matter of reading SIAI's response.
A bit like if there's a big public disagreement between two primatologists that spent years working with chimps in Africa, about the best way to take a toy from a chimp without your arm getting ripped off. At least one of the primatologists is wrong, but even after hearing all of their arguments, a member of the uninformed public can't really decide between them, because there positions are based on a bunch of intuitions that are very hard to communicate. Deciding "who is wrong" based on the public debate would be working from much less information than either of the parties (provided nobody appears obviously stupid or irrational or dishonest even to a member of the public).
People seem more ready to pontificate on AI and the future and morality than on chimpanzees, but I don't think we should be. The best position for laymen on a topic on which experts disagree is one of uncertainty
The primatologists' intuitions would probably stem from their direct observations of chimps. I would trust their intuitions much less if they were based on long serious thinking about primates without any observation, which is likely the more precise analogy of the positions held in the AI risk debate.
I was wondering - what fraction of people here agree with Holden's advice regarding donations, and his arguments? What fraction assumes there is a good chance he is essentially correct? What fraction finds it necessary to determine whenever Holden is essentially correct in his assessment, before working on counter argumentation, acknowledging that such investigation should be able to result in dissolution or suspension of SI?
It would seem to me, from the response, that the chosen course of action is to try to improve the presentation of the argument, rather than to try to verify truth values of the assertions (with the non-negligible likelihood of assertions being found false instead). This strikes me as very odd stance.
Ultimately: why SI seems certain that it has badly presented some valid reasoning, rather than tried to present some invalid reasoning?
edit: I am interested in knowing why people agree/disagree with Holden, and what likehood they give to him being essentially correct, rather than a number or a ratio (that would be subject to selection bias).