Last modified: 2013-03-25 15:04:21 UTC
It would make seeing if an account has contribs or not at a glance easier.
WFM? Special:Log/newusers does exactly that.
See also bug 4393 If this is being requested for newuserlog, it is a dupe of 4393 The problem is, it isn't common to see a userToolLinks() for a user that has no edits. Usually this is the case for the newuserlog, but some other possibly common ones are the move log and the upload log, assuming a wiki has not restricted these actions to require edits (via autoconfirmed age + editcount). If it is being requested for other specific instances of userToolLinks() (see http://google.com/codesearch?num=100&q=package:svn.wikimedia.org/svnroot/mediawiki/trunk+file:phase3/+userToolLinks for examples) then possibly list which ones you want to see it on, and/or update the summary to reflect this.
This would be cheaper to do everywhere if we were joining to the user table to get current usernames or display names (which we probably ought to in the long run anyway). Then the edit count field would be available to us without additional work.