> Like you said it’s pseudoanonymous and I can’t find any obligations it places on third parties. Nothing stops someone putting a camera on top of their hangar pointed at SMO’s runways and correlate the tail number to ADS-B.
That's true, but that falls into the stalking or doxxing category and Twitter already had long standing terms of service statements against doxxing, even before Elon bought Twitter, even if it's not illegal (which I still have open questions about).
Musk can do whatever he wants on twitter and IANAL so what do I know, but between the public interest argument and the public availability of the information, I don’t think Musk has a reasonable expectation of privacy.
That said, anyone using the information to follow him around or harass him is liable to get prosecuted.
Maaaybe it’s more ethically/morally questionable [1] but I don’t think it’s a legal issue. Reading more on the PIA, it still require the owner to have their own operational security. Like you said it’s pseudoanonymous and I can’t find any obligations it places on third parties. Nothing stops someone putting a camera on top of their hangar pointed at SMO’s runways and correlate the tail number to ADS-B.
[1] or in this case Musk’s actions on Twitter are less ethically/morally/legally questionable?