For orchid genera like Phalaenopsis, which is a major crop around the world now, there is a lot of studies and researches done.
Certain Cymbidiums and Dendrobiums come quite close.
All the rest are not so much.
As Kirk says, many disease and problems may appear universal among plants and many are also different even within the same genera or species, by cultivar.
Many experienced and observant growers are aware of many of these.
You just have to find them! lol
One thing is you want to "study" on your own to understand at least the basics and see many examples.
Even commercial growers (orchids) don't have a clue and spread incorrect informations. When you have more than basics, then you can tell what they are talking about and sort them out so to speak.