I just tried to update my signature with links leading Why Coil UVBs are horrible (by Tom) and a thread supporting use of real substrate, but it said no links, so I cut out a couple letters so they didn't count as 'links'. But then it was too long?? So I deleted a link, but I had too many characters? So I deleted the other 'link' and ended up exactly the same. Now, I've seen signatures with links. And signatures that are significantly LONGER than mine??