It is not reasonable to compare Blockchain versus TCP. Only advocates do this because despite Blockchain technology being completely useless, it's a simple line that excuses all lack of progress / usecases, whilst simultaneously implying it will still take over the world.
It's a dishonest line to come out with and people on Hacker News should know better.
The point wasn't to defend bitcoin and blockchain, but just the opposite, to point out how immature the technology is to something vastly simpler, moving data from point A to B on the internet. And TCP took years to get right.
It's a dishonest line to come out with and people on Hacker News should know better.