you don't need one post to use the search function since there are threads going like this. I don't think you need to CREATE a thread in order to post do you?
I don't think so. I saw a thread a few days ago in new introductions and it was the guys ONLY post. I'm thinking they just need one post to look around (at the classifieds 99% of the time).
If nothing else, have a single thread in new introductions just for this purpose. Combine all of these that are currently going. When someone joins, they are pointed to the suggested first post thread. Unfortunately, I think most of the new users are just looking for deals. Clicking new posts on here now sucks b/c a whole bunch of it is threads like this one.