Earlier today on Creative 1 two people were advertising there server by saying "TPA for a server IP, It is a small server and needs people to join it." If you find anyone trying to advertise there server or any server please make sure to report that to a staff member just like I did and make sure to have evidence like a screen shot or a signed book from them advertising.
A signed book isn't really sufficient evidence. The best thing you can do is to take a screenshot and upload it to Imgur, and then use /report or create a report thread on the forums.
PraetorOfRome, the signed book contained there name and what they said "join our server, IP ********.net" there server IP was stated in the book that they signed. But if I also had done /report that would have been great too but I did not have any screen shots so this was my best shot of prof.