If you Browse yourself (!!) you can see what files you are sharing.
It's a good idea to do, to make sure the list is what you intended ... no more, no less.
You can Browse yourself by entering any chat room, then finding your user name and right clicking on it.
While you are at it, click the Show Full Path button and see if any info you hadn't planned to share is in the pathname. (Like your real name, for example.)
Oh, and go ahead and go through your queue and whois your users. If they're sharing less than 100 files, or have room in there queues (a sign that they are sharing crap that nobody wants), click "ignore" in the whois screen and then cancel their queue. They can't enter your queue again!
