Andy since you are working on it could you please have a look at a recommendation I made this summer.
It would be fantastic to be able to limit the Active/Open classifieds for each user.
e.g. Do not allow them to publish more than 3 ads unless some of them expired or closed by the seller.
There are many other things that could be done with this module such as feedback (separate from the IPB reputation system) and even better to allow feedback only from the buyer (needs to be specified by the seller).
Looking forward to 1.1.3 or even better to 1.2 version.