Hams make an entire sport of of this ("fox hunting"), and the FCC has a network of automated monitoring stations dotted across the country specifically to determine the location of rogue radio transmissions.
That said, most of the time it's easier to just ignore the radio trolls.
Yeah, but like other things, as long as the trolls stay in their corner, people tend not to bother them because better in a contained spot than anywhere else. Learning 7200kHz (and 14.313) is 4chan radio and to steer clear is a radio rite of passage; I doubt most people would WANT to fox hunt them because then they're gonna leave and potentially settle somewhere more disruptive.
Hams make an entire sport of of this ("fox hunting"), and the FCC has a network of automated monitoring stations dotted across the country specifically to determine the location of rogue radio transmissions.
That said, most of the time it's easier to just ignore the radio trolls.