[saguntum]

I feel like trying to "trick" the RNG into providing stability is the wrong approach here given all the footguns that can occur with having a low entropy seed, but I am not sure what an alternative to IP stability would be short of doing session management, which may introduce too much state into the problem to be acceptable for a VPN service.

Maybe a clientside hint that gets rotated in some circumstances with options to toggle it off would be appropriate. That should be fine as long as you don't care about someone being able to control their exit IP reliably.