Each person would define their own interpretation as to whether a feature is a beginner feature or not.
I think it would work.
Take wikipedia as an example: on the surface, it's not possible for Wikipedia to work. Too many people would vandalize it.
And yet it does work. Inexplicably.
I think crowd sourcing amongst thoughtful people could work.
If you're a novice, then you are trying to gauge where to start.
Looking a table that says that x people think it's beginner level assures you that it's worth learning.