How did US officials "seize" bitcoin? Were they working with an exchange? The Bitcoin addresses were said to be based in Russia. Was the Russian government involved?
There was a time that I thought that Twitter should do what Parler is doing; let the original author approve replies before making them visible. Now that I've seen Parler demonstrate it, I think that Twitter would never have become as popular as it is if they had done so from the begining. The feature that allows for the wide conversation that Twitter is famous for is also responsible for it's abusability.
I tried Parler, and everyone is missing the point. Parler doesn't censor content because replies aren't linked to "Parleys" by default. All replies must be "approved" by the author. You can troll, but nobody will ever see it except OP. It absolutely solves the abuse problem that Twitter has, but it also limits discussion. The appeal of Twitter is that you get to see what everyone thinks. Parler is for sycophants only.
Mastodon doesn't prevent censorship. If anything it makes it worse. Instead of dealing with professional community managers operating with clear rules, you are at the mercy of some random nerd running a server from his mom's basement. You can run your own instance, but then you're just talking to yourself. Nothing is stopping you from building your own Twitter, hell we had blogs for years before Twitter. You go to Twitter so you don't have to promote yourself to get an audience, and abiding by Twitter's censorship policies is the cost of admission.
The criteria was that everyone needs to have access to the messaging platform. SMS checks that box. SMS does not do literally everything, but that's not the most important quality of a messaging platform.
There are techniques? I gave up after the fourth or fifth paragraph of hype. I suppose there are enough Javascript haters here to take the bait, but I've learned that when someone has to tell you how great something is a dozen times before they tell you what it is, it probably isn't.