I see that the story about wordpress.mu is showing some good effect in the front news section of weblogtoolscollection.com.
So it was constructive interference caused by not too bat idea.
I would like to publicly apologize to Mark for all the inconvenience brought by this story.
Mark, please forgive me.
And because Word&Press Mu is already fact, I invite you to read the article about the NOFOLLOW implementation in web linking, as well as some explanations about the whole above mentioned story.