The web was nearly useless and mainly business card style web pages from 94-98 even though the building blocks were available.
Those things were a bit slow to access over dial-up (porn in particular), but millions of people were using the web daily by the time Netscape IPO'ed.
There's no similar moment in sight for Ethereum's hypothetical "Web 3.0".
2. Even if we accept your statement as true, the world wide web became generally available in 1991. Blockchain technology has now been around for a decade. The web certainly showed its practical usefulness in its first 10 years, yet blockchain remains largely in the realm of hype.
Ethereum was the first blockchain with smart contracts and it only went live in July 2015...