Comments are great. I love them. Obviously they let me know that people are at least reading what I'm writing (even if they aren't enjoying it). So by all means, comment away, even if it's just to say "hi."
Having said that, just because I'm averaging about 1 comment a week does not mean I'm going to just approve anything that's submitted. Specifically (and there may be additions to this policy as needed) using all caps will get your comment denied. Any mention of Obama's birth certificate will get your comment denied.
Beyond that, I will make decisions on a case by case basis and amend the above policies as needed. Thanks.