I created a tag wiki for access-specifier today, which earned me 4 reputation points (2 for the wiki, 2 for the excerpt).
Looking back at my work, I noticed the word "whose" was missing in the sentence "A class member [whose] access specifier is public can be used by all other classes in the program", so I decided to correct this mistake.
Somewhat to my surprise, this netted me another +2 points when this edit was accepted.
I'm happy with that extra rep, but I feel it is not deserved. In fact, it opens a hole in the editing process: you can deliberately leave some errors, then come back and correct them later for bonus points.
You don't get points for editing your own posts; I don't think you should get points for editing the tag wikis you created yourself. I realize there is a difference in that edits to one's own posts are not reviewed, but it does close a loophole that could be exploited for unfair reputation gain.
I suggest that edits of a tag wiki or tag wiki excerpt created by oneself are given points only under two conditions:
- The edit is substantial
- There is a time period between the edits - like a few days or weeks, not a 5 minute "grace period".