User blog comment:Dopp/Technical Update: July 13, 2011/@comment-876022-20110715034357

This bug appears to be on many, if not all, Chat-enabled wikis with users over 999 edits: http://img228.imageshack.us/img228/6553/chatedits.png

Edit: By the way, ever since we have had the Wikia/Oasis skin, the .member-since has been overlapping the avatar and should have had this: for the older style of user page headers in the file: UserPagesHeader.scss after line 89 because the position is relative.