I'm not sure I'm arguing for a ban on decentralised tech as a whole, to go back to my first post on the topic - far from being a selling point, decentralisation is a negative feature for a lot of people. Centralisation provides points of control that are useful way beyond political suppression of speech, to allow (for instance) transaction reversal and material take down.
The post I replied to was singing the praises of decentralisation, as if the idea that nobody can control what's said and done is a universal positive. I'm just putting across the counterpoint that it's not, there are circumstances where unilateral control could be (and is, by large sections of the population) seen as a good thing.
> You cannot outlaw a technology (or require a backdoor) simply because it may not support deletion as a feature by virtue of being decentralized.
I mean, you can. I'm not necessarily saying it's a good thing to do, but there's no real reason a government couldn't make exactly such a rule. Whether it could be enforceable in any way is a different matter.