I feel like I use rem hiding for two independent purposes: navigation and, well, hiding.
When navigating, I fold/unfold without thought. I collapse anything I don’t need at that specific moment. The less I see of what I don’t need to see, the better. And it works great.
But then I can’t use hiding to carefully and semi-permanently hide metadata, templates, or build the specific view of the rems I’m trying to create (e.g. in a portal), and that’s a waste of a very powerful functionality.
Ofc, if you think I’m missing something, please let me know!