Simply because it isn't really posted anywhere...
- Avatars and signatures must be suitable for viewing by the entire family.
- You are allowed up to three signature images. Signature images are limited to 400px by 150px. Any link that you add must lead to an appropriate site or image. Do not link to known spam sites, sites that try to infect computers with viruses, or pr0n.
- Avatars and signature images must not contain:
- obscene language
- insensitive disrespect
- overly violent imagery
- sexual gestures & motions (animated GIFs)
If you are unsure, feel free to PM a mod and ask them if your signature / avatar is inappropriate.