For me at least, getting onto @Mastodon and appreciating the structure of the platform and the tone of conversation has made these other pop-up social networks (Twitter replacements) totally unattractive. No, I don’t want to move up on a wait list by “referring 5 friends”; no, I don’t want to be part of another Jack Dorsey project; no, I don’t want to be part of something with weird completely top-down control. Mastodon broke me for other platforms.

@austinkocher @Mastodon Austin, I hear you. For someone who resigned from #Twitter's Council, it has been bittersweet leaving the bird app. But I'm very happy here on #Mastodon. Good peeps and such a healthy climate. Good for our collective #MentalHealth.

I'm curious to see how this decentralized #fediverse develops further. Props to all the amazing #moderators!

@eirliani @austinkocher @Mastodon
As @lauren and others have noted, there is some resemblance to early USENET.
Some newsgroups were well-moderated (officially or informally) and did well for long time. That broke down somewhat when Eternal September arrived, and worse later with Web interface & hordes. Newsgroups (like comp.arch), once frequented by experts got overrun by loud amateurs & even KILLFILEs weren’t enough to maintain good signal-to-noise ratios. Sigh.