This user received 2 rep yesterday for an edit of my answer which damaged a quote that I had entered. Yes, the correction was well intentioned, and corrected a typo in the original, but that destroys the integrity of the quote.
This action demonstrated a cavalier disregard for proper research, as the user should have first verified that I had misquoted, before attempting a correction. Further this edit was accepted by a user who should have known better, by virtue of having accumulated 2000 rep on this site.
I acknowledge that 2 rep is not a big deal of itself. However, emphasizing the need for care when editing posts, and when accepting edits by new users, is a fundamental tenet (I believe) of a user-moderated site being successful. If no action is taken then both users will have received the implicit approval of this site for their lack of care. Is that what we want our colleagues here to learn?
So finally, what action should I have taken to deal with this, beyond reversing the edit and posting this question? Was flagging a "vandalism" appropriate, for example?