Phone, then ID-based verification is a stop gap, but IDV services will have to spin up to support the mass volume of verifying all humans.
[1] I kind of want to do this from an innocent / artistic perspective myself. Perhaps a bot that responds with a bunch of rhetorical questions or onomatopoeia. Then I'd scale it to the point people start noticing and feeling weirded out by it. "Is this the new Gen Alpha lingo?" Alas, I have too many other AI projects.
I first tried Google; the results are dominating by commercial crap.
Then I tried the "google reddit" trick to try and find some real people's opinions... but look at all the blatantly bullshit comments on this Reddit thread; https://www.reddit.com/r/Thunderbird/comments/ae4cdg/good_ps...
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(if anyone is wondering, the best option for Windows is to use 'readpst' command via WSL. Comes in the 'pst-utils' package).
Of course it's not always easy to say what's AI-generated or not. But if an account is making a habit of it, it still seems possible to tell.