It would be nice if they were real but they are Mailbots (think Mail Robots) used to automatically generate messages (spam)

They each posted 200 spam messages in a day.
They (their IP's) have all been banned/blocked and the messages physically removed
Spam-O-Matic automatically moderated their posts so that you would never have seen them but it was a nuisance for moderators as we still see moderated posts and if I did not physically delete them I would have had to remember that the General Chat thread did not start until page 33 (they spammed 32 pages worth of posts in a day)

Although permanently banned, Jerod, Kegan and Roberto's names may however sit there forever