Proposal:
Let's list the number of total user contributions next to all the user names in the [[Special:Recentchanges]] list.
Rationale:
This will make it easier to focus on new users who may not yet be familiar with what's acceptable and what not.
While it is true that there is no straightforward relation between a bigger number of contributions and contribution quality, it can by and large however be assumed that if a user regularly submits substandard and/or mischievous contributions then the community probably knows about that user.
So despite the shortcomings, seeing a user's number of total previous contributions in the Recent changes list would be a step forward.
see: http://bugzilla.wikipedia.org/show_bug.cgi?id=245
-- Jens [[User:Ropers|Ropers]] www.ropersonline.com