Since the redesign they shifted their focus on images, and well, I don't have any hobby best communicated by images. So, lately I have been only looking at the joke subs.
I unsubscribed from the 3D printing sub a while ago, because the good stuff didn't get upvotes, because they were not images, so nothing good would make into my home page.
So many of the subs I used to follow or would use for reference have become a dumpster fire of consumeristic box shots.
pcmasterrace is basically just "check out this pile of boxes of expensive stuff."
The home server / selfhosted subreddits are endless pictures of a wifi router, 2-bay NAS, and a small form factor PC sitting on a shelf (and in the case of the selfhosted subreddit, also screenshots of people's web dashboards for their home server which is almost entirely torrenting / media related.)
My local area subreddit is almost entirely photos of scenery, with little in the way of anything of substance like news or politics.
IMO, the cool stuff was things like somebody coming with a question like "oh, what is the best way to add a filament spooler on a Prussa i3?" and an endless discussion of the current possibilities with pros and cons appearing on the comments.
Today, the closest you could ever get is somebody posting a picture of the support they made for their spooler, and people talking about this one design. What is much worse.
I wonder if some kind of discord server aggregator will become a thing soon, something one can add their server and invite link to so people know it exists. That plus a forum thread only setup might make it a viable replacement for a bit.
I unsubscribed from the 3D printing sub a while ago, because the good stuff didn't get upvotes, because they were not images, so nothing good would make into my home page.