"admin" edits

Today, as I visit the frontpage, I notice I am the last poster for the last 13 questions: it looks like I am the only user of the website!

My edits sometimes annoy our users.

If we were able to modify our cms by ourselves, we should make the edits made by administrators not displayed on the frontpage or in the articles (well , not the edit itself : the "last edited by" field).

They should only be noticeable in the versions summary of Q&As.

And the admin's contributions should only be "signed" when being a Q, an A or a comment.