Okay so some of us have been there:
Our slots are all sold out and we still get people who are sending requests. I would like a feature that would:
A) automatically reject the request and send a message saying that all slots are gone
B) stop the user from making the transaction of the request. There would be a message that would say "This user is out of slots for the week!"

Edit: users will be able to opt of this from an option on their den page

Suggestions and opinions?