Glad you're doing this and sorry that I do not currently have time to proofread a batch of them myself.

This might be the only time ever that I can mention this without automatically sounding like an asshole, so here goes: Eliezer, whose writing is generally amazingly consistent and well-proofread with respect to style and punctuation, has the habit of using a hyphen, surrounded by single spaces, in place of a dash. He's far from alone in doing this, and it's an entirely reasonable habit to have given that the hyphen is an ASCII character but dashes aren't. However, it doesn't look good even on the web, and looks a lot worse in nicely typeset text. I'd strongly recommend replacing these space-enclosed hyphens with one of the two standard, correct dash usages: either an em (long) dash without spaces, or an en (short) dash enclosed in single spaces.

My apologies if this kind of advice isn't welcome or, of course, if you and your proofreading team already thought of it!