RIAA is switching tactics from suing to kicking people off the internet
It seems reasonable to assume that the "three strikes" clause in ACTA is the result of Recording Intustry Association of America [RIAA] discussions with international policy makers.
"As 2008 ended, the RIAA announced it was done suing individuals and instead would focus on getting copyright thieves barred from the internet."
http://securitythreat.info/online-security/copyright-lawsuits-plummet-in-aftermath-of-riaa-campaign/