Yeah, but then there's centralization and liability. Exactly what Nostr stands against.
The point of Nostr is that any generous soul can pay for a VPS and run a small simple-as-a-rock Nostr relay and help decentralize social media **without** liability.
But if using Nostr implies going through centralized proxies that consume large amounts of bandwidth and storage, and therefore they **must** be paid somehow... Well, then you either got the government's eyes on those (now) fewer "relay plus" owners, or someone willing to pay the bills in exchange for some juicy big data.
And this is a problem of the internet, not Nostr specific.
My advice would be to just use Tor. Clients should come with socks5 support so that people can browse through Tor with them. Problem solved.