I especially like the "So What" part of your post.
I was thinking about this the other day. To me, too many people worry abut what is & isn't fly fishing. Like you, I don't really care how or where you fish or if you kill fish (in moderation) as long as you respect and protect the resource.
Trying to exclude people because they don't adhere to one's own personal beliefs only hurts the resources by possibly ostracizing a potential proponent of the sport.
After all, I like clousers.