Well, I stopped using it but I will not dare to pretend I'm the norm...
Too much of a time hog, too much noise, and a format that drags most of the conversations down.
It is pretty good to keep an open line on all the people you know without the hassle of an adress book and to organize collective events.
a social outcast.
Or you know... you could do it the "old" fashioned way of using phones and e-mail.