> So they don’t have time to write the code clearly, but they somehow magically have time to read and review all the comments and to keep them in sync with the code? And the reviewers too?

Exactly. I used to love writing comments, but they have become for me a last resort. I'd rather put the information I'm trying to convey almost anywhere else. Variable names, method names, improved interfaces, better object relationships, doc strings, test code, test names, commit comments, or my colleagues' heads.