Broken Windows Online

Kottke applies the theory to virtual spaces:

Much of the tone of discourse online is governed by the level of moderation and to what extent people are encouraged to "own" their words. When forums, message boards, and blog comment threads with more than a handful of participants are unmoderated, bad behavior follows. The appearance of one troll encourages others. Undeleted hateful or ad hominem comments are an indication that that sort of thing is allowable behavior and encourages more of the same. Those commenters who are normally respectable participants are emboldened by the uptick in bad behavior and misbehave themselves. More likely, they're discouraged from helping with the community moderation process of keeping their peers in line with social pressure. Or they stop visiting the site altogether.

That's why, I suspect, Dish readers have long opposed adding comments to the posts. The only incivility on this site is my own. And has my name firmly attached to it.