Anyone bothering to try and determine whether this is true or not needs to know your definition of "regular."

I would, for the purpose of that particular comment, cede the definition to shminux and outright declare that the claim he is making about "regulars", whoever they may be, is wrong. He has confused endorsement of the QM sequence and rejection of Single World theories in general with the separate issue of agreement that it was as necessary to applied rationality as Eliezer said.

Come to think of it I don't offhand recall anyone or anything ever having expressed such agreement. "Many" and "regulars" only become relevant in as much as I am more likely to have seen and paid attention to such claims if they existed and can thereby be more confident that shminux is simply making a false claim.