Anonymous nodes?

In a recent twit Dominic mentioned that Dfinity is working on the possibility of anonymous node operation, I’d like to know if there are any more details regarding this. Particularly I’d like to know if node operation will become permissionless since this single data point will determine my move in relation to the project, and I assume the move of a large group of investors.

Cheers.

twit: https://twitter.com/dominic_w/status/1460556909015183360