I'd like to know if you care enough about knowing when your email list has been stolen and misused to pay for it. If you aren't prepared to pay why not? If you are prepared to pay then what do you believe is a fair price to pay? Thanks!
I am not sure that I see a benefit that would justify investing in this type of service. With the current emphasis on opt-in validation I think there is more control provided the list owner making monitoriing an expensive option.