What is this infernal itch?

Why do I have this near-irresistible urge to post some chapters on the OWW? Every time I get a telltale that someone else has posted, my little writer voice says, "And our chapters? Don't you want to post our chapters, too?" And then I start thinking that maybe, if I'm not going to post, I could at least send it to betas, and, and...

Does anyone else experience this itch to be read, to share their creations, even if the creations aren't quite ready?