usually if they remove the sig, they say "Signature removed by moderator (reason)", so there is not really much confusion there.
Maybe there could be different avatar removed images.
for example, there could be 5 avatars or something, with general reasons for removing the avatar. i.e.
Avatar Removed
- Too big
Avatar Removed
- Filesize too big
Avatar Removed
- Offensive
etc...
example
![[Image: attachment.php?pid=403215]](http://shoutbox.menthix.net/attachment.php?pid=403215)
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Attachment: 
