Starlink recently implemented new rules for satellites that travel more than 100mph. Service is deactivated unless they have a valid government ID and an aircraft's tail number attached to the account. While both can be faked, you could arguably correlated a provided tail number with ADS-B data because anyone with a Starlink is likely also broadcasting ADS-B. But it also provides a bit of 1:1 correlation on satellites and there is a finite number of tail numbers out there.
They also jacked up the subscription price which caused thousands of actual pilots to cancel their service. So expect a flood of used Starlink Minis to enter the market soon.
I thought Starlink doesn't allow you to move your terminal at all with the basic plan, and there's a premium plan where you can move it, but still can't use it, unless you stop?
You aren’t supposed to move the terminal on a residential plan, but there are plans for RVs, boats and planes that allow you to change location and/or use while in motion.
I had the RV plan when they said it would not work in motion, but it worked pretty well on the highway anyway.