This is why I recently left Twitter; it's just a breeding ground for smartass one-liners in hopes of retweets rather than intelligent conversation. I don't buy the idea that "this is just the medium" because it's easier to be mean than it is to be nice. If you want to have an argument with someone, write it out somewhere else and tweet the link to them.

Even if you're only following prominent people in your industry, you see some really embarrassing back-and-forths. I didn't want to get myself involved in the ones dealing with my friends and people I enjoyed because I have no idea who I will run into throughout my career, so I deleted my account.