[bluGill]

That is one type of humor, and it does get great laughs when done well. However it also backfire getting you run out of town.

Notice that most of the examples of humor in this discussion are not that type.

[pessimizer]

I'd argue that they all are. The target of every joke is someone painted as comically inept or weak. The only ways to subvert that is to aim it at yourself (which endears you to people), to aim it at the audience (which makes the audience feel that you are superior to them), or to aim it at the world in general (which makes you and the audience comrades against a stupid world.)