I worked as a law enforcement and emergency dispatcher for 15 years, so I'm not ignorant of the threat, either. It's just that all the years of driving around with a ham tag I never once had a problem, not even having radios stolen out of my vehicle.
No, but if you piss someone off in traffic they can call the state police and falsely claim you pointed a firearm at them using the free personal info you advertised. If you have a CCW permit own a firearm, etc their story has credit to it and it's their word against yours. That's a legal proceeding and expense I would rather avoid. After a similar experience I no longer put any form of special interest decals on any of our vehicles.
They can do that by calling in your tag number no matter what it is. The police have your name & address just by looking up your tag.
You are missing a point somehow. My comment has has nothing to do about being identified. It's about giving the crazy public enough info about yourself via bumper stickers to craft a story credible enough to report to the police to get you locked up or at least create expensive legal issues for you.
I have ham plates so potential thieves will know that I'm a ham, and therefore cheap and don't have anything worth stealing.
I was in a Corvette which far removed the cheap title. Both attempts were in Lawrence MA where English was in a minority. The cops in my town just 12 miles from Lawrence and 5 from Lowell MA turned profiling into an art that worked well.
I doubt if the boonies of St Paul Kansas were on the FBI's high crime cities list. With a population of 575 and a bit over one square mile to brag about; there are bigger parking lots around here.
The State of Arizona has 64 specialty license plates for autos, vans, and light duty trucks alone. As a former cop, I notice plates, but rarely ever see an Amateur radio plate. Part of the reason they aren't more popular is that one cannot order them online and who really wants to stand in a long line at DMV / MVD?