The following has been added to the guidelines to resolve questions about what is permissible within profile "signatures":

"Profile "signature" content - While it is OK to include a simple link to your personal (preferably LF-related) Web site in your profile "signature", please do not include descriptive text that might be interpreted as an advertisement of whatever services or products you might provide.

People who register for the purpose of publicizing links to non-LF sites will be banned and the posts deleted."

If your current "signature" goes beyond these limits, please edit it accordingly.