I personally feel that it is a good idea to have categories in the bestiary for each of the kinds of mobs (ie: Yagudo, Quadav, Hecteyes, Magic Pot, etc.) The category page would have the info on that type of mob, and then as you add new specific mobs, linking them to their category they show up on the category:Quadav (for example) page. As it is right now, it seems that someone is wanting to manually add each mob onto the "Quadav" page. I think it is much more efficient, and makes sense, to just add the mob to "category:(mob type)." Please let me know what you think of this, or if we should not have the mob-type as a category. I think it makes a lot of sense to make them categories though. I think this is what wiki was made to do though - category it up!
bestiary subcategories
I think they are a good idea. There are many times when I want to find all yagudo in FFXI. If this Wiki doesn't have these mob-specific categories, I'll be more inclined to visit other websites like ffxi.somepage.com and allakhazam.com, even though its unbareably slow.