> I don't miss a system that excludes users.

I do. Not every community needs to be inclusive. Meritocratic communities with onboarding rails that are non-discriminatory are important in many places.

Do immunologists appreciate armchair antivaxers? Social media has given everyone a soap box to perpetuate damaging memes, and it makes our work harder.

I can't use Reddit to the extent I used to.

And those places still exist. The various networks reachable with an IRC client are in that category. Hacker News is in that category. But they are never going to grow as big as Facebook or Reddit specifically because they do ask their participants to put effort in. And they are no longer the only game in town.

I don't think it's necessarily true that places like that went away in the large. Certainly some have shriveled up. And discoverability for them is about as challenging as it always has been---major search engines aren't going to index them at the top of most queries because major search engines are targeting what the average user is searching for and most popular results. But many simply didn't grow larger while the rest of the internet exploded with some billion new people.

You miss the old system that was exclusive to others because the inclusion of all these people has had the effect of excluding from participating to the extent that you used to?