Create a folder/list of lists
I like to keep my series/doramas/animes/variety or reality shows organized by status (currently watching, dropped, priority, freezer etc), but my lists get a bit messy since they're all mixed up.
If I could create different folders for each, I think it would make things easier.
And I know it sounds like a feature not many people would use, but it's worth the try.
I think this would be nice for people who create a lot of lists for different types of content, like the people who create "anime by season" lists. I'd like to subscribe to such a folder of lists so I automatically see if there's a new list for the upcoming season, for example