And they are fine with that too. That's the case of VC-backed startups: they accept a negative ROI to get the chance to start making money one day.
Then you have the less consciuous ones, which might be big brands who want to experiment a bit with new media/ad formats.
In any case, if you think about it, the real losers are...the honest publishers. Because the money on the table is not increased by fraud, it's just shared in a way that takes something away from good publishers to bad/fake ones.
I'd guess most of the big brands doing advertising look at it more from a brand building standpoint than a direct performance standpoint. You certainly can't compare it apples-to-apples against something like search advertising.
Ha ha, sure they do.
Brand advertisers, in particular.
You know that 1-inc by 1-inc 'video' ad playing in the corner of your screen, that vaguely has a car, but it's designed for TV and you really don't get to see 'what the product is' until the end of the spot, but by then, you've already scrolled past it?
That is 100% a waste of money for the advertiser.
There are tons of large companies with 'ad spend' and they just spend a lot of it without really knowing how effective it is.
Obviously, a lot of it it is, but many campaigns are a ridiculous waste.