Kaveh brought up some valid pointsbrought up some valid points, points I've been considering for a while during some thoughts I've had on community wiki.
- it doesn't seem to be very effective in preventing too many small edits, 2. it is abusing a feature which seems to have been designed with a different goal and using it as a punishment, 3. it has side-effects like reasonable edits over reasonable periods of time causing a post to become CW.
1 isn't as much one I follow as much as, it didn't do much about too many small edits. It was just "Wiki, we're done here", and that's it. No one is told that it happened, no one is told why it happened, and no one is told what shouldn't have happened. The other two, especially the second, are very much on point about the issue.
It is my pleasure to announce that we will no longer automatically turn your edited answers to community wiki. Or any posts at all - all of the automatic triggers in the system have been removed. In their place, we have setup a number of alert flags that are given to moderators in the event of too much revision activity or too much answer activity. The point of these will be to help identify when their is abuse, and have it handled much more appropriately.