You know that feeling you get when your personal Earth shifts? Maybe you were just broken up with or found out about an infidelity or someone close to you dies. You look around and people are still driving their cars and going to work and laughing and basically going about their lives. The world looks really weird from broken eyes. The scene doesn’t line up with your reality.
I think the broken windows theory — a broken window or graffiti in a neighborhood begets more of the same — applies online. I’ll happily approve a comment from someone who completely disagrees with everything I believe in, but if I get a positive comment with a curse word in it I’ll edit it out. My blog is like my living room: If someone was acting out in my house, I’d ask that person to leave.