I think I know what you are getting at here, but I wanted to make sure I understand. If you are in a thread like this one, it’s hard to find your way back to the list of categories.
We’re working on changing the top bar so that there’s always a link to the Categories page. We’re also considering some options to make that page easier to use:
A huge goal of the new platform is to help people discover all the amazing content the community contributes. We know it’s still too hard, but we’re figuring out how to make things better one step at a time.
(If I misundestood the problem, please let me know!)