Update Scanner reports: Chapter 1 has been edited so that Petunia recounts that she was ugly and Lily's potion improved her skin and curves, but no longer mentions having been fat nor losing weight thanks to the potion. As a secondary change, possibly unrelated, Prof. Verres is also more tender towards his wife, an improvement on his characterisation.
My working hypothesis is that Eliezer is going to set up some rules about what potions can do (possibly just Polyjuice and variants), which could not be reconciled with sudden weight loss.
Another one now, chapter 3, when Harry sees Quirrell for the first time:
"I had the strangest feeling that I knew him..." Harry rubbed his forehead. "And that I shouldn't ought to shake his hand." Like meeting someone who had been a friend, once, before something went drastically wrong... that wasn't really it at all, but Harry couldn't find words.
Update: This post has also been superseded - new comments belong in the latest thread.
The second thread has now also exceeded 500 comments, so after 42 chapters of MoR it's time for a new thread.
From the first thread: