Have you looked at the freelancer threads that the whoishiring account posts monthly? They don't get as much frontpage time but they're there.

Edit: if anybody has an idea about how to let more people know about those, as well as the "Who Wants To Be Hired" threads, I'd like to hear it. The problem is that frontpage space is the scarcest resource on HN, and it's hard to justify using 3 of those slots for whoishiring posts.