Anyone ever been busted for using gmrs on frs/gmrs radio?
I'm not sure I understand what you are asking here. If you have a GMRS license, you can use the GMRS channels using either a GMRS or FRS radio, as they now share the same channels. FRS radios are just low power. If you do NOT have a GMRS license, you cannot use a GMRS radio, but you CAN use an FRS radio on the exact same channels.
I listen to my gmrs for chatter in my area and alot of the folks on the higher freq dont have call signs
The channels for both GMRS and FRS fully overlap, they are all the same now, so if you hear somebody on one of the higher channels not using a call sign, they very well may just be an FRS user. Now,
legally, all GMRS licensees using a GMRS radio are
supposed to be announcing their ZA call sign every 10 minutes and at the end of a conversation, same as ham radio rules. In the real world, i personally have NEVER heard anybody announce their ZA call sign on GMRS channels with the exception of repeaters sending a CW station ID every 10 minutes. It's just not done, at least in my part of the U.S. In all honesty, I don't even id with my callsign for GMRS, i don't even have my call memorized. I DO, however, have a print out of my ZA license stored in the vehicle in case I ever needed to produce it.
how would fcc ever figure out who you are? I get the fcc can track you down if your using a base station at home and using more power than you should but for the mobile handheld walkie talkie type frs gmrs there aint a chance they can find you at least from what i can tell
I believe GMRS is self-policed just like it is for the amateur bands, although the self-policing is taken much much more seriously in the amateur bands. This means the FCC is not likely to really care what is happening on the channels until enough outside complaints are made in a particular region/area. The likely thing that would happen if somebody was operating in an adversarial way on GMRS is that other local operators may start hunting down the offender. It is possible to use radios to triangulate the location other radios. So in the case of both a static station at home or a mobile station out on the trails, you can be tracked down as long as you continue transmitting on a semi-regular basis. In the amateur radio community this is actually a sport referred to as "Fox Hunting" and people set up some pretty interesting mobile setups to track down radio beacons (the foxes) hidden by other hams.