Effective immediately, the signature policy is changed. It can be read here: The PuritanBoard - Signature/Profile Reqts
Your public signature that appears at the bottom of your post must minimally contain:
Your first name
You are permitted to add more to your public signature (including the limitations regarding the number of rows and quotes, etc) but you are not required to share any additional information:
You are required to keep your user profile fully filled out: http://www.puritanboard.com/profile.php?do=editprofile
There you must add your name (first and last) as well as the other pertinent information. Even though it is called a public profile, the public profile is viewable to only members of the board. Accountability for your posts is maintained while the public profile does not release any information for those uncomfortable with sharing more.