Now, where I do agree with Ben is that if sales stop completely for a period of time and I contact the webmaster and he's not promoting us anymore, sending no traffic and still collecting rebills and has no plans to resume promotions, then I would let him or her know that this will result in termination of their account and they'd be paid what is owed as of that termination date.
now this one i dont get.. Just becourse they are not sending any traffic and dont plan on doing it in the future either why should they be "punished" for having sent a surfer that truely loves your site and sticks around for a long time ?

Doesnt really make sense..