The bike industry likes to subdivide mountain bikers into tiny groups (so they can sell more bikes), but the subdivisions don't seem to be very useful. I'm still not sure what tag best describes what I do. So, I wonder if we could come up with a better set of sub groups.
I was thinking that you might be able to divide riders (rather than bikes) in a more useful way and you might be able to do this based on attitude to risk. So, at one extreme you have what I'd call the off-road roadies. They are out for exercise, to enjoy the view and maybe for companionship. While they might be quite happy to ride over technical stuff the element of risk or danger doesn't actually add anything to the ride for them. At the other end are the adrenaline junkies, for whom risk and (perceived) danger are the main motivators. For them it's all about the trail, the technical challenge and pushing their limits.
Of course, the problem with this classification system is that most of us just sit in between these extremes in a group that I can't neatly define. But maybe you can do better.