In reply to Miroslav Glavic.

The reason comments are pointless in most big media sites is that no one actually cares about what is written in them, especially not the author of the article to which the comments apply. With no guiding hand to ensure that the comments are on topic and are not repetitive they just become a ground for trolling as there is nothing more useful to do with it.

For good commenting moderation you can look for what john scalzi (you don't know who is he? be so ashamed of yourself ;) ) does on his blog http://whatever.scalzi.com/, he is not only blocking trolls but also closes down discussion which he think got to the stage of "more of the same", and if the subject is one with a potential for a shit storm he is not too shy to simply close comments when he is not online. End result is that the noice/substance ration is very low and people can actually find interesting content in the comments even when there are many of thems.