The US government is bought and paid for. They'll be taking down what their owners want even without sopa. Megaupload was pick as first because it was the strongest and, most legitimate of the upload sites. Once they sentence the guys to more than 5 years, they'll be taking out the sites that are actually used by pirates, then they'll gradually work their way down to lesser offenders like YTMND.

The US Government is Corrupt.