Tagged is a bottom feeder, but they they aren't really the worst of the worst. To some degree, I think having annoying, yet relatively harmless (They didn't install a keylogger, execute XSS against bank accounts, or format hard drives) companies like this in the Internet Ecosystem is a bit like vaccinating people against the truly dangerous diseases.

Over time, people will become a _little_ more savvy about clicking on these "Your friend just sent you X", be more alert to phishing, use slightly more secure and heterogeneous mail clients/browsers.

And then, when a truly dangerous black hat shows up, they won't have free reign over a completely unsuspecting populace.