I think Lemmy and Kbin has the most potential due to their federated nature. I have found several vibrant communities with interesting and thoughtful discussion

I think Lemmy and Kbin has the most potential due to their federated nature. I have found several vibrant communities with interesting and thoughtful discussions across many instances there. Too bad some of the largest instances started doing these de-federation shenanigans recently. I'm on my own personal instance so I'm not affected so far, but it does concerns me. Imagine if Gmail de-federate from Yahoo mail so users of both sites can't talk to each other (but can talk to the rest of the internet). This is absurd and has the potential to kill the fediverse if the practice is unchecked. There has to be a way to moderate discussion without abusing de-federation.