Blame ubiquitous cheap drones for that one, or rather: way too many reckless drone pilots doing way WAY too much shit that ended up in the best case "just" violating people's privacy and in the worst case endangering passenger aviation by flying around airports. The eternal september of RC aviation.
No, registered sex offenders don't have to broadcast their location. Just register. Armed cops don't broadcast, because they understand it's not safe. FAA members don't put markers on themself or their family members for the same reason. They understand that would make them exposed. But they easily do it to hobbyists. For simple reason: to kill this hobby off. Who might be interested? This remind me that shill in FCC killing net neutrality.
Drones, by the way, didn't kill no one in US. RC aircrafts did kill 2 in US through the whole history. Last one was RC helicopter. Pilot killed himself. Legal guns kill illegally many more. Thousands per year? But owners aren't forced to put a target mark and broadcast their location. Obviously why, that would make them a target. But drone owners must. Don't you think it's disproportional?