I use it because it helps me keep in touch with people I want to be in touch with, without taking very much time. It serves a function that the links on Scripting News used to serve, but that was just a one-way thing. Now I get links and ideas from other people. It's an equalizer, a playing field leveler. It's useful the same way a cell phone is useful. Sure some conversations on cell phones might seem dull. So hang up. But don't get rid of the phone (and certainly don't make general statements about phones based on some people's conversations).