User blog comment:Jenburton/Coming Soon: Message Wall in Labs/@comment-26753070-20111026003550/@comment-1656630-20111026014607

We've found on test wikis that the first few messages from the most active users are about the wall (and therefore, yes, should probably be discarded from data), but then they immediately get back to work on their wikis. There's been very little distraction and barrier to just having the conversations they were going to have anyway.

(the major exception: community test wiki, where everything has been about testing the feature.)