... just had the same problem ... here we go:
Adding Signatures
You may use a signature (commonly used in email messages) on your posts. This is a new feature, so if you registered previously, you may not have been queried about storing a signature. If you click on the profile link
at the top of most bulletin board pages, you will be able to edit your profile, including your standard signature. Once you have a signature stored, you can choose to include it any post you make by checking the
"include signature" box when you create your post. This bulletin board's administrator may elect to turn the signature feature off at any time, however. If that is the case, the "include signature" option will not appear
when you post a note, even if you have stored a signature. You may also change your signature at any time by changing your profile.
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This is what is killing this biz.
This shit affects everybody