Type-1: Those who will argue endlessly to prove that they are right. Never stopping to think that perhaps they are wrong. They'll row up shyt creek without a paddle just to make a point.
Type-2: Those who question themselves periodically. They aren't afraid to say "sorry I was wrong" and move on to something else.
We got plenty of Type-1 people on CH. Most of them are broads and some are old dudes.