If you're not releasing then you're just journaling. If you're not posting it publicly, if you're just keeping things to yourself, then you need to admit that's just a journal. You're not really being a writer, you're just journaling for yourself. I think to be a writer, the unspoken necessity of that definition is that you have to release it to the world, otherwise it's just your diary.

– Derek Sivers in Derek Sivers Reveals His Writing Secrets For His Forthcoming Book, Useful Not True (~30:00)