I don’t think the context in which I heard about this communication was very private. There was a period where Michael seemed to try to get people to attack GiveWell and Holden quite loudly, and the above was part of the things I heard from that time. The above did not to me strike me as a statement intended to be very private, and also my model of Michael has norms that encourage sharing this kind of thing, even if it happens in private communication.
I don’t think the context in which I heard about this communication was very private. There was a period where Michael seemed to try to get people to attack GiveWell and Holden quite loudly, and the above was part of the things I heard from that time. The above did not to me strike me as a statement intended to be very private, and also my model of Michael has norms that encourage sharing this kind of thing, even if it happens in private communication.
Thank you for the clarification. I think it is valuable to include this context in your comment.
I will adjust my comment accordingly.