Evergreen notes for broad concept

Is it bad to use evergreen notes for broad concept or topic? For example, I will use evergreen notes in a book or in a topic in my subject.

If you continue to develop the note overtime and connect new ideas to it, there’s nothing wrong with it.

You might’ve seen this one before, but if your evergreen notes follow these guidelines below, it’s not a bad thing.

Also, an example would be nice.