Got a citation for those claims?

As far as I’m aware, journalists were only referencing ElonJet, which, as OP established, is only re-publishing already public information.

Despite this, even if you want to somehow argue that it’s against the rules, I reject that claim as well. Twitter’s policies[1] explicitly allow “location information related to commercial property or places of business, where this information is publicly available,” and all of “Elon’s” jets are owned by commercial entities.

Edit: citations showing “his” jets are owned by an LLC:

https://flightaware.com/resources/registration/N628TS

https://flightaware.com/resources/registration/N272BG

https://flightaware.com/resources/registration/N502SX

[1] https://help.twitter.com/en/rules-and-policies/personal-info...

> And remember, these are rules they agreed to.

IIRC, the rules were changed the day the account was banned, which means that the people who were banned never actually agreed to them, merely to a standard rules agreement that has a clause "we can change our rules at any moment and you can do jack-shit about that."