We won't discuss holders in great detail here. Holders don't care to defecate in the wild. They are quiet and reserved - and easily embarrassed. They will go days without defecating and often feel miserable when they finally do. This technique is, of course, unhealthy and not recommended.
Some holders attempt to empty their bowels before even embarking on the camping trip.
You don't know what you're missing. Sitters like to find a log or rock upon which to sit and then scoot to the back of it to drop their load over the side. Sitters love to pause and enjoy everything about life. That's why they sit - so that they are free of all stress and worries. Sitting is the most comfortable of the 3 techniques but presents certain unique hazards.