Although I allow signature lines on my forum, I'm very watchful too. If someone shows up and makes one post and then leaves a signature link to a spammy site, then I'll likely take the signature line out. Really, I would prefer that signature lines be for members who come by at least once a week and are not using my forum for backlinking purposes. That's just my policy and I'm sure every forum owner is different in how they handle things on their forum. What's your policy for signature lines? For instance, how many lines allowed, how many characters or links? Do you allow links to be sold in signature lines?

