The reason it's dry is absolutely because of the new rules. Even though the new 50 post rule was made public 6 months before it took effect, most of the people looking to rent out their points were caught off guard because they didn't check the forums enough to know about the rule change.
I myself have rented out my points on a number of occasions, and even though I knew about the rule change, I've found it difficult to keep up a running 50 post total because I have trouble finding the time to post regularly.
I hope the new rules don't destroy the rental board as we know it. What is a shame (to member's of this board looking to rent other people's points) is that it's made it much more expensive, by virtue of Supply and Demand. Before the rules went into effect, the average going rate was about $10/pt. Now if you're lucky enough to be able to get points, you'll be paying at least $12. If you go through David as stated above, you'll be paying $13, since all the Supply has been effectively locked out.