One would think that Hirsch is smart enough not to run around with underage girls and drugs in a redneck town like Panama City, FL, which is what Francis was doing when he got busted.
Companies like AOL/Time Warner, Comcast, AT&T and Directv make big bucks off of the porn Vivid supplies to them for pay per view and to folks who want high speed internet to download porn, those companies along with the hotel industry would use their pull in Washington to squash any big time prosecution of Vivid.
Chong got caught up in a sting that was going after hundreds of folks selling "drug paraphernalia." He didn't even fight it, he fell for the whole "we'll prosecute your wife" bullshit the Fed's always try, he plea bargiened and did 9 months at ClubFed which totally revived his dead career.