I'm not claiming they did something to the architecture and it definitely doesn't solve the problem you identified. More that this flaw in the difference betwee

I'm not claiming they did something to the architecture and it definitely doesn't solve the problem you identified. More that this flaw in the difference between userbase growth and the protocol made it very difficult to have the kind of vibrant consumer-to-consumer architectures that could have potentially competed. Nowadays, probably ddos and things like that are other barriers. However, I do think that IPv6 does at least remove a fundamental limiter even if that alone isn't enough.