http://www.courthousenews.com/2010/02/12/24648.htm
Jagex sued bot developers.
Of course, this is last case scenario and certainly wouldn't happen to Habbox but it still breaks terms and conditions.
Also, I'm sorry, but why are we looking at the Habbo way? The fansite way probably touches on it a a little when it says "Don't break the law or encourages others to do so" or something similar to that. What I'm talking about is the Habbo
xforum rules.
Not the habbo way... this forum's own rules.
Edit: Don't even get me started on the fansite way though; Habboxforum violates it too.