"If those South Carolina portions of the site are not removed," McMaster said, "the management of craigslist may be subject to criminal investigation and prosecution."

Now, Craigslist has filed a suit against McMaster in a South Carolina Federal court. The online classified ads directory seeks declaratory relief and "a restraining order with respect to criminal charges he has repeatedly threatened against craigslist and its executives," according to a post on Craigslist's company blog. The rest of the gives their side of the argument.