I Love Comments. Usually.
Any blogger likes to login and see a lot of well-crafted comments waiting to be approved. I like to know people are reading my articles and that they feel compelled to add a thought or two to the topic.
But, I have also gone out of my way to reward readers who comment by giving them solid outgoing links. I have removed the No Follow from my comments, making any link you leave in a comment an outbound link. And, I have a list in my sidebar that gives an outbound link to my top 10 5 commentators.
Therefore, I expect a little something in return. I expect the comments you leave on my blog to be thoughtful and of substance. And, I expect the sites you link to have original content, not be ad farms, and not be an obvious attempt to fill the internet with yet more spam. If I see links like that, I will let the comments through, but I will strip out the links.
Fair is fair.