I don't care much for this "Web4" proposal (yet) but can we get our terminologies unified? AFAIK Web 2.0 is the era of user-generated content[1] and, IMO, was the most vibrant era of the internet. That's my "good old days" though I've witnessed the tail end of 1. Even if you're not at all a fan of that Web 2.0 era, what's with the overly-cynical characterization here?

[1] https://en.wikipedia.org/wiki/Web_2.0 (and oh look, apparently Sir Tim Berners-Lee has also already defined what Web 3.0 is).