Like most people, I suffer from a few pet peeves. I don't like the sound of nails scratching on a chalk board. I don't like it when other people touch my feet. Pulp in orange juice is gross. And bad blog design really bothers me.
It could be that I am one of the few people on the net that actually get an unpleasant physical reaction from bad blog design but my reasons, I think, you will find valid.