Oh, so this publicly accessible information should not be subject to free speech, even though it's clearly publicly available? Should all speech that could incite crackpots be limited?

Flightradar24, as well as all sorts of similar services (FlightAware, ADSB-Exchange, etc.) let anyone watch the location of any aircraft with ADS-B in real time (as well as list everywhere the plain has been and playback previous flights)

Not true. "Any aircraft" is only valid for ADSB-Exchange. All others filter.

There’s no filtering on non-commercial aggregators like PlanePlotter either.

This data is freely emitted annd anyone with a dirt cheap receiver can receive and upload it.

So we should shut down flightradar24, too, I assume? Because that's a lot more highly accessible than a twitter account and has real time status. On all planes, not just Elon's. The horror!

Not true. Fr24 does not show Elons Jets.

True, FR24 will sell you the ability to exclude yourself from their map. Go to ADSBExchange, then. Or another public ADS-B aggregator of your choice.

This information is so accessible, it is openly broadcast in the open radio spectrum! You can get this info with a $20 RTL-SDR dongle! The Horror!!!!