By the MWI sequence, I presume he means the QM sequence, which appears clear to me but bogus to physicists I've asked ... and, more importantly, to the physicists who commented on the posts in it and said that he couldn't do what he'd just done (To which he answered that he doesn't claim to be a physicist.)

Also, judging by the low votes and small number of commenters, it seems that even people who claim to have read the sequences have tended to tl;dr at the QM sequence.

(I finally finished a first run through the million words of sequences and the millions of words of comments. I only finally tipped my tl;dr tilt sensor at the decision theory sequence, which isn't actually very sequential.)