Signatures

What's your policy on signatures ? I want to do a hack where it displays only 1 time per 10 posts or thread. How do you have it on your forum ? I looked at the hack, many had problems with installing it. How is it working on your forum ?

The only signatures hack I use here is the one I wrote, to keep the signatures at the bottom of the post. Otherwise, I just use the signatures feature in the admin CP.