He is right. None of this has any obvious utility.
You never provided counter arguments. How can I trust you if you’re just an anonymous person online stating something without backing it up? At least the crypto guy had some examples. How about you state why those applications in questions have no utility?
chrisco255's post was a textbook gish gallop. I would not blame anyone here for not bothering to do an item-by-item refutation.
Oh poppycock, it was not gish gallop. It is a list of in-production applications that you should research and understand before you do some drive by criticism of a rapidly evolving and growing technological ecosystem. If you lack basic curiosity, there's not much anyone can do to convince you. Anyone can be an arm-chair critic, go find the fundamental flaws in these in-production systems and tell me why they're not sustainable. Tell me why they're not the future. Be specific.
A project's mere existence say nothing about how useful it is. Your argument would be a lot more convincing if you just picked one or two projects and showed evidence of their widespread use as something other than a speculative instrument.