Board Thread:Questions and Answers/@comment-1377043-20130306230729/@comment-418817-20130307004918

We'll have to discuss what category that was in the first place. Also proper category trees are something wikia encourages, which is why we started developing those in the first place. It may be "unnecessary" to you but it certainly isn't unnecessary to Chipmunk or myself, which means it is relative to who's viewing it.

That said, let's discuss some guidelines as to what constitutes making a category. This'll allow us to avoid unnecessary categories in the first place. However we should set parameters other than simply numbers (note Gouraigers, 0.5 Robo, Sentai without colors). Perhaps relevance of categories TO their pages (like the aforementioned Axe Category which lists Rangers, suggesting the "Rangers are axes")

I'll ferret that discussion to another thread.