/> Evil dog head in my edits

Why it is that sometimes when I edit a post, this strange silhouetted terrier dog head shows up after the smileys in the post?

What I am referring to is this:
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See the resemblance?

Why he has to rear his ugly head in all my edits?!?!? :wacko:/>/>

NOOOOO, THERE HE IS AGAIN, BASTARD…

OH I just figured it out…

It is the ghost of Kazakore’s avatar, haunting the forum… :ph34r:/>

There is some glitch in code handling smilies… I wonder if this can be used somehow to introduce XSS.