I think it would be good to acknowledge here Eliezer's edits.

I don't. He made them only after ingroup criticism, and that only happened because it was so incredibly egregious. Remember, this was the LAST straw for me - not the first.

The thing about ingroupy status-quo bias is that you'll justify one small thing after another, but when you get a big one-two punch - enough to shatter that bias and make you look at things from outside - your beliefs about the group can shift very rapidly. I had already been kind of leery about a number of things I'd seen, but the one-two-three punch of the Scott emails, Eliezer's response, and the complete refusal of anyone I knew in the community to engage with these things as a problem, was that moment for me.

Even if I did give him credit for the edit - which I don't, really - it was only the breaking point, not the sole reason I left.

The rant (now somewhat redacted) can be found here, in response to the leaked emails of Scott more-or-less outright endorsing people like Steve Sailer re:"HBD". There was a major backlash against Scott at the time, resulting in the departure of many longtime members of the community (including me), and Eliezer's post was in response to that. It opened with:

it should have been obvious to anyone at this point that anybody who openly hates on this community generally or me personally is probably also a bad person inside and has no ethics 

...which is, to put it mildly, absurd.