Here's another one: more complex than I first thought. Over the years, I've come to hate sarcasm. Over and over, I've seen the hurt and harm it can induce in others, certainly in myself. And over and over, I've seen how ubiquitous it is when people want to get back at people who have hurt them. I can be as sarcastic as the next guy, and it comes on with amazing immediacy.
It's also helpful at times when one's awareness of it can pull a couple out of its grip. A time-out can sometimes go a long way in placing some distance between a series of zingers, and the need to stay loving, or at least, civil.
Then we have "sarcastic styles." I'd characterize George Will (Newsweek and NY Times columnist) in that way. He's won a lot of awards with his approach (though I'm glad he's on the right, if he had to be anywhere), and I've also seen how deeply, if secretly, satisfying, it can be to get back at someone with a real zinger. So, I've asked myself whether sarcasm is always harmful, in light of my hatred of it; and whether my feelings are somewhat irrelevant since the primal instinct for it is so powerful. And, of course, there are those who just like it as a way of being in the world, clever and witty.
Finally, I've begun to ask myself what, exactly, it is. Psychologically, it's complex, and very much a matter of degree. It's always married to lots of other feelings. Behold, especially, a hater of sarcasm who's also very good at it. I imagine that if we studied the actual scenes of couples' breakups, sarcasm would often be the star of the show. Have I complexified this enough, my THINQon breathren and sistren? Ah ha! There's another question hiding within this one. But I'll wait a while.
So, I think that I'm both posing a question, and suggesting an exploration. The question is whether sarcasm is always harmful. The exploration is the nature of people's experiences with it. And a good time was had by all!