I think my liberal use of ABP has prevented any real ailments of my machine. Although, I keep disinfecting family members' computers on a continual basis. I've spent many hours in personal contact with many different malware/scareware lately.
It's sickening to see people stooping to such tactics (the virus-writers). I put these pathetic individuals in the same group as the pieces of shit who rob convenience stores, murder, rape, vandalize, steal cars, etc. They all deserve to be lined up and fucking shot in the face. They are doing nothing to assert that they deserve to live. All they do is make life more difficult for others. We have no room for people like that. Let them be killed so we can get on with our lives without the constant threat of someone fucking up the planet for everyone else. It's shit like that that keeps us from growing as a species.