User blog comment:Rappy 4187/Technical Update: October 16, 2012/@comment-3441771-20121017032152/@comment-957747-20121017042634

If you wiki designed a welcome 'template' that users should fill out on their page, the old functionality wouldn't allow it. Take this welcome template, for example. If the goal was for the user to edit that template 'as in' once they were welcomed, they couldn't in that manner. This is the resultant page after a welcome with that 4 line template call. This isn't a user friendly landing page.

After this update, what is seen in the welcome text will be seen on the user's page.