Hi more4me,
Thanks for your message. I understand where you are coming from, but I use this strategy to gather information in order to monitor uptake and success of affiliate promotions and then use the info to tailor upcoming promotions.
Of course the promotion is open to all affiliates, but if I have details as to which affiliates are promoting because of a specific promotion, I can work more closely with those affiliates, in terms of banner placement, creative etc.
I hope this makes sense. Let me know if you have more questions.
Regards,