If there was a Reddit/Lemmy style website (where people create communities for various subjects but it's all available from the same website using the same credentials) with forum style discussions I would be outta here in a moment.

Ongoing discussions with bumps are so much better for knowledge accumulation (that's the reason why they're still used by specialized communities), the major issue with forums, as pointed out, is the hassle of having to go from one website to another to talk about various subjects and needing to sign up to each one of them.

As for solving the "little Kings" issue, dumb backend, smart frontend. Remove admins from the equation, those hosting are only there to host. People moderate communities but communities can easily be replaced. People create a frontend to access the backend but from a user point of view it doesn't make a difference what frontend they use, they will get access to the same content.

The fact that I've written this comment a dozen times since last year proves a point, Reddit/Lemmy style websites just lead to content being repeated again and again. This comment will get lost to time just like all the other times I shared my opinion on the subject. On a forum it would be part of the ongoing discussion and anyone who wanted to go through the whole thread where all discussions on that subject to place would read it, no matter how long it had been since I posted.