When do you stop receiving reputation for editing posts? I haven't come anywhere near the +1000 rep cap, but I appear to not get any reputation for edits (not that I do that many). I read this in the FAQ:
The other way to gain reputation is by suggesting edits to existing posts as a new registered user. Each edit will be peer reviewed, and if it is accepted, you will earn +2 reputation. You can only earn a maximum of +1000 total reputation through suggested edits, however.
I'm assuming "new registered user" has something to do with it, but that is not clear what it means; that phrase is vague. I don't have that much rep here to qualify for much other than a newer user.
For an edit example:
I modified this post, received an excavator badge, but no rep for the edit. Maybe I'm not supposed to get rep for that and I just don't know the rules.