I just noticed this in one of my mailbox on Google Apps.

http://rohit11.com/share/outer-court/report-bug.png

Anyone else seen this?

Yep I've seen it... I have also seen a "take a survey" link on google docs..

It is not just for Google Apps users. I have seen this in quite a few accounts in my regular Gmail. It is just a way to get users to contribute.