Sadly these still a lot of folks on there that haven't moved elsewhere. If you curate your follower lists and don't venture into the replies of big/ trending accounts then it's still manageable. Mostly I just use to to read people I follow rather than post anything new myself these days.
Also, I've feeds of decent journalists that I've built up over many years that don't post elsewhere. There's still that immediacy that you just don't get elsewhere.
You can't replicate the cinema experience at home, regardless of how big your TV is or how impressive your audio setup is.
Watching some epic sci-fi on the big screen, or communally experiencing some creepy horror movie, or a whole crowd of 100s laughing along together at a ludicrous comedy is something I don't want to give up.
Sure, a lot of films are fine to watch at home but with a decent audience the cinema experience can't be beaten.