Categories, or sections, are indeed necessary, however you want to call them. Whether they should have clearer names or not can be discussed, but so far the end result seems clear enough to me. You keep mentioning WaiSays, but if you look at my previous post, it's not there.
Because the Wai Diet is a diet and not a cure. The Acne Sample Diet is a cure for acne, that's why it's in WaiCure.Also, categories have the annoying aspect that items can fall under different ones. Why is the waidiet not a waicure, for example?
They (will) have.The sections should have a small introduction/summary explaining what you can find there.