I'm open to them being useful, but don't know enough to have a strong opinion. I've heard nostr:npub14slk4lshtylkrqg9z0dvng09gn58h88frvnax7uga3v0h25szj4qzjt5d6 bring up Arweave a few times as having the potential to be a more censorship resistant and private internet
nostr:note1c4dvncwv25z59737dwffqz2fjtvtyukl8d6sjaheelk2ywhem89szumyc3
nostr:note157njyv2c2dlsrjwlsml3fuvewkywv72zv9q4eypjvdwt00e3tluqwddgxy
nostr:note1cjg8fljavlntyfgwqdrykdxgdjwjpq9wgyfv45w8y0m7uwq3uwms8rj8ey