User blog comment:Kirkburn/Technical Update: April 23, 2013/@comment-4795804-20130424201959/@comment-4795804-20130425074046

I have similar feelings. I would also prefer not to have the welcome messages in my contributions list as they aren't sent by me.

+ I used the Special:Contributions/Wikia page as an overview of new users / IPs. If the welcome message are displayed under each admin's contributions, I lose this feature.