I'm quite sure Nick Denton doesn't like user comments. Gawker doesn't like opinions that they weren't paid to show on their site. And they REALLY hate it when you tell them their site redesign was awful, or that time-sloting Kotaku was a moronic idea. And they have just about the worst commenting system out there.
All bitching about Gawker sites aside, their comment system was truly abysmal. Anyone can comment, but if you don't create an account your comment goes into a deep hole for potential approval by an unknown entity on the 5th of Never. Then if you make an account, your comment will show but it won't show by default unless it's been "featured" by having a starred member promote it at whim or reply to it. And if you're VERY lucky and catch an author on a good day and agree completely with him, you might even get elevated to a star of your own. And then you get some kind of moderation power, assuming you don't get it removed for not kissing Gawker's ass enough. And before you say it, yes I have a star and no it hasn't been removed (at least until an editor reads this, I suppose).
There is no system for obtaining or losing a star that I can tell aside from author/editor whim. There are no obvious rules for promoting comments. There are no guidelines given if you get a star. The community guidelines are open to potentially abusive interpretation that doesn't always reflect the clear intent. The entire thing is a mystery box that panders to Gawker and censors anything they don't like.
The system here at /. is much more orderly, I can eliminate all the chum comments just by browsing at +1 or +2. And moderation is clearly defined and passed around in time to everyone who joins the club. We have freedom to post, clear self-policing, and even reward consistent quality. Plus, you get similar article quality and policing of content (with its own slant, but then that's what communities are all about).
I do think Reddit has probably the most pure and free-form overall model for generating, filtering, and promoting user-generated content, but the quality mileage does vary and there's practically no fact-checking. Something like a "front page" with editor-approved threads might help the mainstream web surfers more easily accept it.
I just wish I didn't find Gizmodo/Kotaku articles as entertaining as I do. They do bring me bite-sized news with entertaining content and more often than not are teh funny. I can't stand Nick Denton though - he's a greedy shithead whoring out the integrity of his editors/writers with every ad-article, bad design, and site-wrapper he shoves down their throats.