I understand they need help from federal marshalls for equip seizure, arrests, etc. and often the marshalls are busy with other duties. Pirate radio, or let's call them "undocumented broadcasters" to be politically correct, is definitely breaking the law though some of us may say, oh wow, here's someone putting something offbeat on the air, having fun, maybe some very interesting music...there was that Christian Slater movie Pump Up the Volume, and the British one Pirate Radio (orig title The Boat that Rocked) and sometimes we can sympathize with those who break the law but provide something different on the radio.
But yeah as I've said before, a 13 yr old may want to drive, or someone may want to set up a doctor's practice in a poor neighborhood despite no medical training or certification etc but hey--you need a license. There are only so many spots on the dial and the Fed Radio Comm., later the FCC,
was set up to prevent just ANYBODY from going on the air. It can cost big bucks for a station to operate and some punks come along and set up their own station and interfere with them. License, we don't need no stinkin' license. And the stations that "serve the community" yeah yeah yeah,
good intentions and all, but it's still breaking the law. Broadcast on the Net if you can. Go on a small station (college, small AM etc) and do your show that way. We've had some very creative folks out there, like Radio Free Vermont 96.5 which alleged that it was OK for them to broadcast as the FCC is federal and the signal wasn't crossing state lines.
RFV, based in Rutland Town* VT, aired standards, public service announcements--even commercials (I remember one for a golf driving range in neaby Clarendon). Seemed kinda professional but they were still breaking the law.
*--a sep. community from Rutland City, which surrounds the city limits of Rutland City proper.