This is a nice, concise post. It really brings home a crucial point. I, myself, can't help but write a long post, mainly because it's my nature, but I hope people don't feel obligated to do the same. I mean, most of my long posts don't even get any attention, so I don't think it's indicative of the payout a post receives.
beauty is in the eye of the beholder
There are no truer words in terms of defining what a good content is. That's why I feel very negatively towards "tutorial" posts that tackle how you should write. People should just write what they feel like writing and hope that the emotion they put into it shine though. Readers might appreciate it and vote on it, but at the end of the day, what's important is that you are satisfied with what you put out into the world.