I noticed this myself... the size tag in my sig wasn't parsed correctly, but the color and bold tags were. I refreshed the page and all was fine. I thought it was just a one-off occurance and didn't think much of it.
Yeah I noticed it too. It is also happening sometimes on the profile pages (probably the same bit of code gone funny).
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UPDATE 0beron SET talkupation = talkupation + lots WHERE post = 'helpful'; Scribble Pad MOD for phpBB (aka MSN handwriting for forums)