On Care2.com every now and then someone's anti-virus pops up a virus warning for one of those comment pics that other anti-virus programs do not have a problem with. People do not always post them properly and just hotlink them instead. (And no, I do not know what that means) Seems Avast was the only program that had a problem with that particular comment pic, so at this point I don't know what to do. It has already been deleted from the persons profile page just in case it was infected. So few of those links from the link you posted had a problem with that particular comment pic or the host site that I'm beginning to think Avast made a woopsie in reporting it as malware.
I'm extra careful these days as I had a nasty malware infection that took me 8+ weeks of 8-12 hour days to get my system back to being clean again. What do you suggest I do now? Who is polonus?