Anonymizer.com has created an arms race between the anonymizers and the anti-anonymizers. “Non-attribution solutions” started to be used to spread worms and spam, Fred Hapgood says. Some tools do, after all, make sense; according to sextracker.com, most porn traffic occurs during work hours. The bottom line is that it is impossible to have a set of tools permitting anonymity without at the same time having a set preventing it.”]
Source: https://www.csoonline.com/article/2122666/web-monitoring–anonymizers-vs–anti-anonymizers.html