Cheers Ascension. They are persistent buggers! Only noticed them when someone made an actual comment that wasn't spam on here. I figured I was more popular than I thought or they were bots.
I scrapped all of these for you but the software doesn't remove them completely so it looks rather annoying. I have one of these on my page as well. I'll talk to RobA and see if he can figure out how to get rid of them altogether...including this one.