>Look, the fact is, these things follow a pattern of 80% of the users being handled by the top 20% of the sites.
Web3 is different. Social networks with blockchain-inspired architecture usually converge on 99% of the users using a single website.
The difference between Nostr and average web3 social network is that events are not replicated to all nodes, only to selected ones ("relays").
Otherwise it's a similar architecture: thick clients, connected to the data storage network (which can be abstracted away to help adoption).