Earlier quoted context omitted.
I see this sentiment mentioned often, but all the things we could do back in the day are not only still possible, they are actually still being done by people out there. What has happened is that, whereas 10 years ago we would individually spend the time to track down these communities and niche sites, nowadays we can't be bothered and just go to Youtube or Facebook. That's on us though. Fortunately, in my experience…
How would you track them down today? In the old days, you typed "knitting" into Lycos and you got this wonderfully weird site of someone for whom knitting was a passion, along with a webring full of similar sites. Today, everything is hyper-optimized SEO for maximum ad views run by a huge faceless corporation. How do you discover anything good in that noise? My only hope at this point is Neocities.
The "authentic" people are on Youtube and Reddit and Medium and publishing on Twitter and closed Facebook groups. And yet, some of those people sometimes want to make a living on their passion. I would be willing to bet most people on the web in the 90s would have as well, if they could have.
There is more hobby and enthusiast content on the web now than there ever has been, with more depth, greater quality and dimensionality than the 90's web could ever have hoped to offer, as well as far more opportunities for interaction between people. I think that's a fair trade for nostalgia and "quirk."
(Edited for less snark and more clarity since it seems this comment is getting sniped.)