Well, both ideally and probably, things will be signer based, so it would be some browser extension, app or frost-bunker that rugpulls a large/indescriminate part of the network, rather than a particular client...

I would find it hillarious if amber would rugpull the majority of the network tomorrow, only for Will to do the same with damus to finish the rest off. Meanwhile fiatjaf would be sitting alone in his own creation depressed staring at his own fancy promenade server. The great resettening🤣