The name is as ridiculous as the concept itself. Besides, after the so-called Web 2.0, there were many pretenders to the name of "Web3", such as the semantic web[0].
Yeah, it feels like wishful thinking to me. If you build it, they will come?
Semantic web is a great example of something that had great potential (I still think in subject-object-predicate triples when solving problems) but never really went anywhere big.
[0] https://en.wikipedia.org/wiki/Semantic_Web