Illegal Activity/ T&C Violation.
I just looked into why I am Ip banned and I am banned for "llegal Activity or T&C Violation"Here is what it says under "Why am I banned?"
Illegal Activity/T&C Violation
includes: promoting the use of illegal drugs, password phishing, keylogging, using third party software to disrupt the programming of the hotel, discussion about illegal activities, violent role playing, role playing cyber-****, making death threats, making bomb threats, disclosing or sharing or posting confidential Sulake information on the web or via email or any electronic or printed form, as per your Terms and Conditions agreement, underage Habbo players, etc. These bans are often permanent bans.
The only thing I can think of that breaks this rules is that I told someone one of the new rares that was coming out, but I doubt very much that is worth a perm ban.