https://en.wikipedia.org/wiki/List_of_defunct_social_network...
side note but Fowler's organization runs an employee Mastodon instance. This is the "correct" model that should have been applied to social networking from the beginning (interoperability, not silos)
Windows Live Messenger, on the list, had 330 million active monthly users
https://en.wikipedia.org/wiki/Windows_Live_Messenger
India TV claims Orkut was exactly that popular (300 m)
https://www.indiatvnews.com/technology/news-orkut-farewell-m...
"X" is definitely running right into a similar problem that Google+ faced: a good name can't save you but an awful name can sink you. I've never heard even the most ardent Musk fans defending the name change. It's ridiculous.
Those communities, plus stable infrastructure, great integration with photos, publicly viewable profiles without requiring sign-in, transparent moderation that I never knew I missed until I joined Diaspora, and no ads. It was a real shame.
Even Musk was trying to argue it was all bots before he got stuck with the bill.
But ultimately it doesn't matter, I don't think your first point is correct - the window of opportunity for this cycle is behind us for a decentralization of social media imo. The network effects of X are too strong, eventually people will come back.
For me the most useful part of Twitter was real time news trends. I don't even open that tab anymore.
Next most useful thing was the network of scientists from my field. It is also non existent now. I saved a lot of tweets about new papers over the years. When I went back to read them during literature review for my dissertation, I found most of them gone and accounts deleted.
What has increased drastically is verified accounts spewing either sensationalism without any care for engagement, or outright misinformation, sometimes taken down hilariously by community notes.
You're living in a fantasy bubble if you think anything in this comment is insightful or representative of the current state of Twitter.
The only thing that was in doubt during the various recent Twitter changes was how rapidly it would decline - people have underestimated network inertia, which is why Mastodon and now Bsky have failed to capture sufficient impressions to convince everyone they're the "next Twitter". Which ultimately brings people back to Twitter - noone is going to Twitter because Mastodon/Bsky don't work, they're coming back because with each migration they overestimate the finality & are disappointed.
Ultimately though, slow as Twitter's decline is, it is continuing to decline steadily & will inevitably cross the critical threshold where one can consider it first irrelevant (Facebook's currenly approaching this state, a process which has been slow), then eventually "defunct".
TL;DR: declines always take longer than everyone predicts, but ultimately still happen. Comebacks generally speaking don't.
Twitter is maybe even worse now though, no matter how many times you click not interested on hard right content, street fights, etc. it just forces it on you. They have stop letting you adjust aspects of your feed.
I have literally never seen this stuff in my feed. Are you commenting on or reposting far right content or street fights? Even if you're commenting or reposting to say how awful the content is, that still counts as "engagement" and will cause the algorithm to give you more of it.
This isn't about whether Mastodon is better or any other existing alternative though: people as a group are less interested in individual rational concerns like these and will ultimately go where the network is, and wherever it's going to (yet to be decided) it's clearly moving away from Twitter. Slowly, but surely.
You don't really. In fact, historically, migrations away from a large declining platform don't tend to have a unified destination. Consolidation doesn't happen directly, it's usually a later stage of any given social network (immediately preceding decline).
e.g. people didn't move from MySpace to Facebook en masse. They went to LastFm, Bebo, Orkut, many other places. It wasn't until long after Myspace's decline that Facebook started to be a singular dominant force (at which stage Snapchat/Vine/Instagram/others started seeping in).
> The next stable state of consolidation
This "stable consolidation" tends to follow mass abandonment of a network to disparate places, it doesn't precede it.