For me fly fishing means:
delivering the fly with a fly cast and we all know what that is and isn't. It's not lobbing a big ball of lead (chuck and duck).
manipulating the drift of the fly by controlling the fly line both before and after the fly lands on the water.
no bobbers or whatever other gadgets are the latest in "trapped air technology". I'm still wrestling with the hopper/dropper rig.
Again, this is for me. Everyone has to have their own code.