Really, what excuse could you have had for including such content in the first place, other than malicious intentions? Surely you review all content before placing something on your pages, right?

I'm not buying this feigned innocence. It's like listening to Zynga say giving Farmville credits for users to sign up for trial offers is perfectly legitimate. They know perfectly well the revenue generated by getting thousands of users to sign up for free trials of stuff that is impossible to stop before the bill gets charged to your card is generating more money than legitimate ads/networks.

You're using illegitimate ad networks because it pays a higher CPM period. Just admit to it so we can blackhole your domain without bullshitting us.