tenacious Spammer.

Every few days I run across a profile spammer who always uses the same name, in this case Haiderali2989. The name is the same each time, only the numbers change. Usually just Profile Spam. Not always the same email address either.
Is there a way to block the name to keep these Bo-Bo’s from bugging us all the time ?

Another matter, I saw while sweeping out the who’s online section, I noticed this, "18 Minutes Ago Viewing ‘No Permission’ Message Unknown Location
/forum/forumdisplay.php/54-Admin-s-and-Mod-s-War-Room
54.172.84.85 " The I.P. goes to Ashburn, Va. U.S. The “guest” somehow found that there is a War Room, though the system did not allow access. A hacker maybe?