How does this resolve if a book or article that Yudkowsky co-wrote is quoted, without Yudkowsky being mentioned specifically? My intuitions are different for If Anyone Builds It, Everyone Dies (yes) and for an article/statement that Yudkowsky co-signed with 100 others (no), so it might be good to get more precise resolution criteria.

What counts as a quote? Must it be clear to the participant that it was Yudkowsky who originated the quote?

@Elspeth The fact that criterion 1 is separate from criterion 2 suggests that clear attribution for the benefit of people in the room isn't required, if the quote is sufficiently unambiguous-from-our-perspective about being a quote from him.