I do not think "old" helps a discussion and probably impedes it. A better conversation is perhaps about what features we call "old" are good and desirable. Then how we can build a new, sustainable system with those features.
Unfortunately sustainable is somewhat equivalent to money. Whatever work you do, and even if you love it, in general it needs to have a functional business model. Businesses that can financially support the people who provide them, tend to continue.
Personally, I believe this is the fundamental problem with many of the things that we now fondly think of as "old". Google groups? What was the business model? Did it make money? How could you make money from doing something like that?
The fundamental business model IRL used to be "fee for service". Not lock in. Not subscription. It works, because if people want the service they can pay for it. Okay, so hint: what are the issues of implementing fee-for-service on the internet?
hint number 2: someone mentioned banner ads in a comment. Is that fee for service? If not, for extra credit, what would be the side effects of a banner ad type business model? Are there useful services that could be provided with an alternative business model. Etc.
> what are the issues of implementing fee-for-service on the internet?
If you aren't selling porn or whatever credit card companies can't stomach, there's no problem. I recently stumbled upon a way to accept payments without the credit card companies (crypto): https://www.x402.org
> what would be the side effects of a banner ad type business model?
I remember Carbon Ads and BuySellAds being tasteful banner ad companies. I think one or both folded in recent years. In today's era, respectful banner ads probably have a niche market, especially with the prevalence of ad blockers. You'd be better off implementing x402 instead (paying for access to a resource).
But then your end-user needs to already have a crypto wallet, understand what USDC is, and so on...another niche market.
I've seen meatspace communities start to break into factions and have a rise in drama because they've gotten too big; I think that internet communities have the exact same problem. It's worsened by the fact that companies have a hard time properly moderating at scale and that companies can profit from the views from increased drama. All of the fundamentals and incentives seem to work against large scale communities.
So the "old" web that I fondly remember is smaller communities. Some of course had abject shittiness, but the communities were contained -- so shitty groups (every community can figure out what shitty is on their own) are less likely to invade your conversations.
There are, of course, significant forces working against this. Small communities require active administration and moderation. Someone technical has to maintain and pay for the service; someone has to define what an asshole is and give them the boot. And since people seem averse to paying for privacy, I don't think there are enough volunteers for this to scale. There are also huge undeniable upsides to large communities that you simply can't replicate at the small scale.
But it's the web I remember and like. Where I feel like I can get to know people and don't feel like I'm shouting into the void. Where I don't feel like my conversations are constantly interrupted by jerks that have nothing to keep them away.