I guess I don't think the advertisers are getting stiffed — yes, they pay a CPM for 1000 impressions where some meaningful percentage are fake, but that should

I guess I don't think the advertisers are getting stiffed — yes, they pay a CPM for 1000 impressions where some meaningful percentage are fake, but that should be baked into their models. The effective CPM for whatever the real number of impressions is is still ROI positive.