the content in the blog is yours, no? So people posting things that would cause flame wars from your domain is still your responsibility? At some point people stop engaging to disagree and start to flag. Your karma doesn't reflect the score expected from the blogger behind the top #3 website of HN. This should tell us something.

Supporting a monopoly like Apple will sure attract a lot of detractors in a forum named "hacker news". The same would happen to Microsoft supporters 20 years ago.