As a newb to Fediverse, I agree because it is ambiguous how to use one account for several instances. I've browsed the web for several hours. But I only found out that the above is not a one-size-fits-all because some instances require registration.

Also, saying that an account can be created to access communities in my experience, implies I can only see and minimally interact on those instances. But I cannot go as far as posting anything because as I previously stated, I need an account on the said instance to do that.

I see the Fediverse being an umbrella of apps/services. However, from my experience, they're not synchronized. More like silos.

[–] Candelestine 2 points 1 year ago

Yeah, it's a bit of an issue, there's a lot of concepts that can get subtly mis-communicated. I wrote this awhile ago, as I felt it helps navigate more intuitively when you have a full top-level view of the whole idea in the first place:

https://lemmy.world/post/527260