The main argument she made was that if the adversary is observing both ends of the network. So if they see anything before the tor/mixnet and after the exit node, then they can correlate traffic. @Max prob refers to Epoxy, my project attempting to do multi-hop publishing to nostr relays. It is indeed similar to your solution @Laan Tungir . My solution was to do subscriptions to relays over multiple hops and different networks (clearnet->i2p->tor->clearnet for example) epoxy:

GitHub

GitHub - Origami74/nostr-epoxy-reverse-proxy: Are operating a relay NERP yet? Use this Nostr Epoxy Reverse Proxy to allow clients to proxy through your relay and earn sats.

Are operating a relay NERP yet? Use this Nostr Epoxy Reverse Proxy to allow clients to proxy through your relay and earn sats. - Origami74/nostr-ep...

the site for testing it:

GitHub

GitHub - Origami74/swiss-dashboard

Contribute to Origami74/swiss-dashboard development by creating an account on GitHub.

You should check out @PABLOF7z 's onion routing spec, (can't find the repo now). He included padding and sats in the route as well.