Honestly, after literally over 30 years on the internet, I can safely say that this idea of bringing everyone together into one space, that will make both the space and the people better, does not work. Even back in the 90s it affected the signal to noise ratio badly. Now there are significant sets of bad actors, shitposting/meta and general noisy ignorance and hate that can easily, easily drown out any decent signal. It's like a permanent Eternal September.

Think of this like the subject of tolerance - typically criticised that as a philosophy, in that it would thus tolerate the very things that would undermine and destroy it. Rather, it is not a philosophy, but a social contract - if you don't use tolerance yourself, others are not bound to be tolerant of you. Of course, I'm not talking about being tolerant/intolerant here, but using the quality of engagement and participation in a community, as a barometer for whether that user should be engaged in that community.

Some barriers to entry are self-selection for appropriate users, and therefore a good thing - whether through obscurity, level of engagement, education or whatever. Without these, everything gets overrun and crushed. We haven't yet found a good self-moderating system for online communities that provides everyone with a positive and fulfilling experience.

Threads can be Threads. The fediverse can be the fediverse. No-one is forced to choose just one, and trying to force them together is going to crush the fediverse. Lemmy has about 20,000 active users. Threads got 30 million signups in 24 hours.