Recently, I got a call from a valued reader saying I was being culturally rude in a post. He was alarmed because I was quoting someone he considers biased against a certain group. He asked me several times how I would feel if someone was making a comment that I considered anti-semitic. Although, I was glad to discuss the issue with him, he overestimates my sensitivity.
Here in the blogosphere, anonymous is the comment name of choice. Most people aren't willing to own their own words, even when they're being politically correct. However, anonymous said allows them to really let loose. Some bloggers allow anonymous, but then reprimand their commenters when they insult someone. Here at molovinsky, I allow registered pseudonyms.
Now, there is nothing wrong with people who have manners, but chances are they will not become bloggers.