As a web developer who feels fairly knowledgeable of most things web, even I have a hard time wrapping my head around the Fediverse, how to use it, and the broader implications. If the folks that have been using it for more than the past week and a half do anything but inform and encourage, it will just drive away the people needed most to bring about widespread adoption.
There’s not much to it really. You make an account on an instance that takes your fancy, then click “All” instead of “Local” to see content from other instances. You can subscribe to other comms in other instances just the same as the local ones.
The only barriers are defederation (beehaw.org has defederated from lemmy.world and sh.itjust.works, also some have defederated from lemmygrad.ml) and editing. Defederation means you cannot see posts between instances, while edited comments appear to only be stored on the true host instance and aren’t synced federally (I think the comments only sync when they’re created).