So you think that it will be beneficial for the design of a satellite service to choose whom will use it. Do you even think that if you have made proper precautions it will know who you are. And if you change your hardware your wallet and position will it be able to deny service.

stacksofsats

DarthCoin

Is it permissionless if Blockstream can turn off their feed at will?

Scoresby

bitcoin

What is the difference between permissionless and censorship resistant?

If you can use it with a simple computer and Block Stream Satellite it is permission less. If it is protected by 51% of total mining operation then it is censorship resistant. Incidentally we are talking about Bitcoin.