* your email address
* your IM address (AIM, Jabber, or other instant messaging address)
* your phone number
+ * your "private messages"
+ * your login credentials (username and password) for other services (Twitter, Facebook, etc.)
- Some private data may be published in aggregate, e.g. "30% of our
users are registered with Hotmail addresses."
- Your notices (including files) can be downloaded and re-used by