The old adage in online blogging and social media is "never read the comments." That's because that's where the trolls and jackasses hang out. Not everyone there, to be sure, but it sure attracts them.
I don't have that problem. I do get the occasional spam comment, but the overall commenting process here doesn't lend itself to trolls. I mean, sure, some can drop by and be total jerks, but that really doesn't happen. I require authentication to comment, meaning a commenter must have a Google account, or some other authentication measure that Google accepts in order to comment.
Why does that make a difference?