What ruined the web is one word: monetization. Before it was used for fun, people weren’t looking at it as a source of income, unlike now, take YouTube for example, in ~2010 it was those amateur captured videos where people are just happy they can share some clips with the world, right now, you have “content creators” with their soulless faces and setup, all have the same LED setup, thumbnails with reaction-face pics…
There is also a ton of really high qualti content. And lots of channels that allow the creator to make a living from it.