It is a really interesting issue. I think the web, as a whole, is terrible for this.
If you know a magazine won’t go to print for 3 weeks, you might- oh, I don’t know —edit it?! Maybe re-write? But the web is a needy mistress and always wants your latest NOW. It is a dangerous trap to “Spill your creative seed” as soon as you have an impulse. You get instant feedback, but then you are done with an idea that could have been GREAT if you took time to develop it.