Well put Adeiu. That is the biggest problem. Identification only goes so far. However, if you have a bacterial infection, and you are convinced it is fungal or viral or whatever, the knowledge of your target can be useful when choosing a therapy--if there really is one.
Most people I have helped, feel better knowing more about what it is they're dealing with, even if it means less hope for treatment. It encourages them to keep an eye out for the latest development---like me, with an unknown plasmodium spp that works like some infective fungi. Shroom