I posted this comment in response to the same title question at Damyanti’s excellent blog http://damyantiwrites.wordpress.com/
“I’m not really a writer, but I have had the odd feature and article published in a local magazine. I have written a couple of technical manuals too.
I generally write for fun, because I enjoy it. Sometimes that writing can be confusing and even a little alarming, but I get it if nobody else does.
I have a very persistent and loud internal monologue that sometimes takes on a character of its own and comes up with all sorts of ideas. Those can be some of the most interesting and amusing things that I put to paper, and later finish out properly on a keyboard.”
I could/should have added that I write a lot of ‘advice’ pieces, for fun and for friends. It’s often the researching of the subject, and the planning of the piece that’s the most fun for me – all done on paper in longhand. Typing it up on my laptop is a satisfying conclusion to that.
So . . who do you write for?