Why is that? He's making a legal claim (crimes have been committed, but prosecutions are not occuring). Why's it outlandish to ask for an explanation of the law and how the crime has been committed? Just because it's on Salon.com, the guy should get a pass? Maybe your right that I expect too much from a Salon.com article - but if the author makes a legal claim - it's reasonable to expect that he should back it up with more than blurbs and sound bites.
Also, knowing more about the crime, the facts, and the penalties would either make his point more persuasive (like you said, the fact that prosecutions are being dropped) or more re ed (like how one of his links flat out says the conduct in question was legal).