Why aren't pics allowed for use as signatures?

Why does a link appear in my sig and not an image?

i don't know, maybe add around. shouldn't there be a link for signature when you upload your image in photobucket?

I did. Still doesn't work.

No Images in Signatures. It just doesn't look good on a serious defence forum - spamming your signatures with large images, etc., sometimes members think certain picture is okay to display while it may not be so okay for the general public. Nah, ain't going to happen.