They, like some political parties across the west, are arrogant in thinking people have no other choice. They've consolidated it all down into a few options, buying out their rivals, or crushing them legally, and or using anti competitive behavior to hurt them, that's against the law but not enforced because plutocracy, and think we have no other options, the other option is worse, so they can continually get worse and not lose market share, because what are you going to do?

You can start your own websites, they will use the law and courts to try and crush them. They will lean on isp's to strangle the traffic, get hosting sites to refuse to host them, they will lean on credit card processors to not process transactions for them. Maybe manufacture a terrorist connection to justify personally going after anyone involved in the website or it's operation.

There is no limit to the caprice of these entrenched interests where we are headed, with an openly corrupt government; openly sold out courts with contempt for the constitution and ancient rights of English Common Law countries, open contempt for their citizen charges seeking redress from powerful interests abusing them; an executive branch that is all but openly harvesting protection money, payoffs, and bidding off regulatory actions, bidding off laws and executive orders and justice department investigations, and setting the federal government up like a political machine from a century prior, where everybody pays and the boss gets a cut of everything. Like boss tweed or something, I don't know what we'd expect with a mobbed up blackmailing and blackmailed real estate baron from New York City that's been involved in over 10k court cases and never once paid any real price for cheating everyone he's done business with that couldn't hurt him and slandered them to justify it.

We could go on with the corruption bit, but point being, any new sites that start to get critical mass need to be set up in a way that they can't strangle traffic off on them, and that they cannot take down the whole unit for allegations of criminality in any part of it. Easy enough for them to set up a fake terror account, wire money from here to terror there, and then take the entire thing down. To sanction everyone involved. The federation bit could help limit the liability and prevent a lot of that maybe. But we need our own infrastructures. We need our own internets. We should be setting up community cooperative internets everywhere. There is no reason we should pay two companies trillions of dollars to provide internet poorly and spy on us in the process, when hundreds of billions could provide ourselves internet at cost under a less intrusive nature.

I think the biggest exodus from reddit happened when they limited their API so all 3rd party apps died at the same time

But reddit had a lot of blunders so this is just my guess

I heard about for in the Uk and aussielands, because they are leading the way in subjugating the internet to ai, to id every account

Fwiw Australia's law quite specifically says they can't require ID for age verification, requires that if the user does choose to use ID it cannot be used for any other purposes.

Aside from ID, they're allowed a variety of options for age detection. Most of them seem to have gone with a short of sentiment analysis type technique. They work out you're over 16 based on the fact that your account is 10+ years old (and not many <6 year olds have accounts) or you're talking about politics more than Bluey. That's not collecting any data they didn't already have.