Can someone, please, block and eliminate the user "baby4u"?

See subject!

Asked, http://nabble.documentfoundation.org/Can-someone-please-block-and-eliminate-the-user-quot-baby4u-quot-tc4186838.html

I deleted the offending comments from my followed questions but spamming seems a continuous process. Quite boring and tedious to keep up with cleaning!

In this site, not exists moderator?