In my opinion, the act of posting a story qualifies as publishing it. When you post a story, you are asking others to spend their time and resources reading your work. I'm not quibbling over the definition here--I'm stating that a story should be taken seriously even though it's not typeset on dead trees. In the words of Larry Niven, one of my three all-time favorite authors and the one who has been the strongest influence on my writing style, "It is a sin to waste the reader's time." I'd also apply that to unfinished stories, another pet peeve of mine. (And, no, not looking at anyone in specific, so let's not go off on a tangent. It's irritated me since I first got on the 'net in '94.) In the words of Mark Twain, "Don't say the old lady screamed. Bring her on and let her scream." Paint vivid pictures! Relevant details and sensory data will bring a story to life in the mind if the reader.