4. Strengthen moderation in certain contexts
Related to the former are the stories where it can be difficult to turn off comments, because they deserve to be discussed and because readers' interest is high, but where the risk of illegal or unethical comments is high, and the discussion can easily take an unwanted direction.
Some of the typical topics are immigration and integration, religion and sex; there are more. The Middle East conflict is a typical example of an international issue generating significant interest, in which the very same interest can result in statements one doesn't want among readers' comments.