I don't think the dorm topic is talking about things such as music . I think a Off Topic of wizard101. Just talking. And stuff and stuff. But since I am a lover of music. I really like listening to the radio on my site. :D
In online forums, an "off topic" section means a section of the forum to discuss things not related to the main purpose of the forum. Some will prohibit particular topics such as politics and religion that have a tendency to turn into flame wars, but if an off topic section doesn't allow anything not related to the main purpose of the forum, it has no reason to exist.