Yes and bitcoinaliens also, but they are not annoying just every now and again.
Its just a page switch, which can easily be closed.
It helps with his expenses in payments which is very high.
I don't don't mind if this is how he pays us, I would not want him running at a loss would you.
They have a good reputation, using pop up ads looks unprofessional. They have three high paying sites, as far as they are paying users will tolerate this less annoying pop up ad