Is stuff online worth saving?

I've recently come back to a PC game (B-17 the Mighty Eighth) from 2000 that, quite unexpectedly, is getting a remaster and potentially a port to VR. It had a thriving community for several years, with many mods and guides and knowledge contained in the single dominant forum (bombs-away.net). When it shuttered, the vast majority of that information was lost. Old workarounds for bugs in the engine and detailed instructions of exactly how certain mechanics works are unavailable. One popular youtuber who continued playing through at least 2010 maintained a dropbox that had most of the mods that were ever available, but not the forum posts explaining them. So, for example, there's a mod that survives there to let you replace a generic 'sign on the dotted line' handwriting with your own - but gone are the instructions of exactly how to apply it.

When I had returned to the game after bombs-away.net had gone defunct, I posted my own personal archive to the GoG forum for the game. Now that I've returned to the Redux version I find my own files, with my personal notes, shared by a single other soul who had similarly maintained an archive, and apparently had collected mine at some point. I'm very glad to have helped preserve knowledge - but not everything of mine was there. Now that I've noticed the 2024 remaster effort and joined that community, I've been able to share files that were otherwise apparently completely lost - in particular, a set of images showing dimensions of certain common features in bombing targets, that allow estimating the total size of the target.

Unfortunately, my own personal archive included many forum topics that I just dragged off shortcuts to. I can see the old titles of the pages from the surviving shortcut files. I remember the questions I had (and now have again) that those shortcuts held the answers to. But because I didn't save the page itself, it's.. gone. That's immensely frustrating.

Yes, things are worth saving. Especially for topics with extensive information among a small niche audience that have a single point of failure. I've found an extension (SingleFileZ) that does a good job of archiving a web page with all embedded content into what's a zip file under the hood - so futureproof even if the extension disappears and it becomes difficult to simply open the file directly in browser.

EDIT - montebicyclelo mentions SingleFile, which apparently is a continuation of SingleFileZ, with new features. SingleFileZ already allowed automatically saving every visted page in a tab (or even among all tabs), batch archiving of a list of urls, etc, so presumably SingleFile has all these capabilities and more.