Is the threat of being disconnected from the internet encouraging digital pirates to change their behaviour?

Even though the Spanish government has reportedly already dismissed this option.

Hollywood movie studios are, for the first time, pressing Congress to pursue a ‘three strikes’ policy against internet pirates which could ultimately lead to disconnection for persistent offenders.
The Motion Picture Association of America (MPAA) has written to the Federal Communications Commission (FCC) which is currently drafting proposals for Congress on how American broadband policy should [...]