The biggest advantage of federated social media is that there’s multiple servers. I know it can be a rough point for new users, but most people can just join whatever the largest server is and they’ll be perfectly fine. You need to pick a server because lemmy isn’t one website, and it shouldn’t be one website. People should be able to host an instance if they disagree with another one’s moderation/rules, and spreading the load across many servers helps to prevent large scale downtime when servers go down. All of these advantages can coexist with new users just being pointed to lemmy.world.