I thought I could help by suggesting a few new tag wikis. Most were accepted, but in 3 of them, the tag wiki body was accepted but the excerpt was rejected, leaving them with no summary.

The edits are:

* http://superuser.com/suggested-edits/3925
* http://superuser.com/suggested-edits/3914
* http://superuser.com/suggested-edits/3916

I didn't see anything immediately wrong with these, with respect to http://blog.stackoverflow.com/2011/03/redesigned-tags-page/. Am I misunderstanding what the tag wiki excerpt is for?