I entered in a signature today; it is a URL. I didn't use the complete URL because I didn't want it to be a link. I was concerned about the statement that HTML is not allowed in sigs. When I used the signature for the first time, I was surprised to see it show up as a link to the site, so I edited the message and removed the signature.
So... is a link considered "using HTML" or does "using HTML" mean colors, font faces, etc? I will use the sig at the bottom of this one so you can see what I'm talking about.