A central account instance rather defeats the point of a federated system.
With federation it’s ensured that any single instance is only a small part of the whole, and that if any instance goes down (or worse, goes rogue and becomes a bad actor) then the impact of that is minimised. All users being registered on a single instance is akin to putting all your eggs in one basket.
I do totally understand from the perspective of new users that it’s hard to understand what to do or how to do it but that is a problem that could be better addressed with clearer onboarding. e.g “Choose any one of these recommended instances to sign up. It doesn’t matter which - you’ll be able to see the same content and communities across all of Lemmy no matter which you pick”*
*mostly, but close enough
I had so many good times on forums back in the day.
The personal nature of them was great for being social and making friends, but it was also good for the quality of the content for and user behaviour too.
When everyone recognises you and remembers your past behaviour, people put effort into creating a good reputation for themselves and making quality posts. It’s like living in a small village versus living in a city.
The thought of being banned back then genuinely filled people with dread, because even if you could evade it (which many people couldn’t as VPNs were barely a thing) you’d lose your whole post history and personal connection with people, and users did cherish those things.