As others have said, it being called old.reddit means it will get killed. And it's already happening, new features either don't work at all or are broken, existing features are rotting apart, it's definitely not a priority.

The future is in communities operating their own site and running it the way they want. Politics aside, thedonald.win is a great example. The interface is way better and less buggy, and the community is cohesive.

If you look at reddit facebook twitter instagram, their design paradigm is not to facilitate discussion, but to break it apart into a bunch of ad-separated pieces and then stash it away, never to be findable again. Almost like what people say about qwerty layout.