I've generally moderated comments with guidelines similar to those above. Now that they've been published so clearly for a loftier publication, I feel I can at least apply those guidelines formally.
Tip: Do not write a novel. Keep it short. We will not publish lengthy comments. Come up with your own statements. This is not a place to cut and paste an email you received. If we recognize it as such, we won't post it.
Please do not post any comments that are commercial in nature or that violate copyrights.
Finally, we will not publish any comments that we regard as obscene, defamatory, or intended to incite violence.
18 March 2009
Guidelines for commenters
This was cribbed from the Christian Science Monitor: