Somebody needs to figure out how to move millions of people from one platform to other. Otherwise we will never get better platforms and our current techlords will keep getting richer.
There's always the big bad scary word, "decentralization". But of course, even among HNers, there's amazing cognitive dissonance among "decentralization is hard and takes effort" and "omg, of course the next centralized platform won't be bought by an insecure dictator-wannabe". I'm not that old, it's played out over and over. I shouldn't even comment here. Decentralization or bust.
I would like decentralization (mostly for resilience in case of natural and human made disasters if anything), but for the control I am not sure it is better. Someone has to make a choice of what is shown. Someone has to moderate things. And I am not even sure who is the best to do that - am I capable to decide a good balance between in-bubble and out-of-bubble content; or decide about the difference between hate-speech and free-speech ? Who can I trust to do that? Would a communist/libertarian/etc. be better than an insecure wannabe dictator?