Yes, I think that WO is moderator free and I think theymos allowed it to be that way for some reason.
This is not entirely true. If you look at the warning, you can see that the topic is not moderated for some simple violations, but gross violations can be reported to the moderators.

And, as I see it, the point is, on the one hand, to preserve the special atmosphere of communication in the topic, but on the other hand, not to make it so that some spammers start using it.