I like the idea that the question itself is a humorous topic. It gives the discussion a kind of formal unity that keeps it from falling apart into digressions! Hurray!
So. We do have the observable fact that humor exists, and it seems to have salutary effects under the right circumstances--although there is also the possibility of perverse laughter, which must also have a meaning inasmuch as it certainly exists. There can be no doubt that humor has enormous destructive power.
But let me lighten up. I am going to do the Jacques Ellul thing and single out hope from its place among faith and charity. I will understand hope in somewhat the same way as Ellul as well... It seems to me that the inventories and examples that we give of humorous evidence (see above) provide us with a couple of distinct paradigms:
The first is the fact of harmless or otherwise charming asymmetry. It's not a great grotesque horror, but it serves the same purpose, albeit more gently. It prompts us to still hope for something radically Other beyond everyday phenomena, even beyond the essences revealed by everyday phenomena. These little lobsided realities that affront us, call us to pity, or come crashing down on us all tell us to pick up hope again. Do you know the story of St. Kevin and the Blackbird?
The second is the freakishness inherent in the phenomenon of mixed or dubious category, e.g. the platypus. These little monstrosities are just enough because they are but little. "If God can do such a thing as that," we say, "then I know that I might just have a prayer after all." And hope comes in again.
Let laughter come from God at the right times, I say. But still, to be Orthodox we must nurse an awareness of our modern tendency to romanticize innapropriately.
Fun topic. Thanks for posting it.