This “my roommate is a moron” type of statement, and its close cousins (e.g. “my fat, ugly, stupid friend, sister, brother, mother,” etc.), will be familiar to anyone who writes online and allows Comments. Comments can be useful, informative, responsive, educational, helpful, and thoughtful. However, they generally are not. I’m not sure why and won’t waste time wondering why not.
For practical purposes, though, it’s useful for blogs and websites to have a Comment Policy so readers and Commenters are forewarned about why they may see the Comments they do see and why their own Comments might not see the light of day.