I made the unfortunate life choice of opening a link to tumblr and found their advertising decisions to be... questionable:pic.twitter.com/LqzjbaLRHE
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Sites have no way of policing ads. Real time bids = unpredictable. I've been working on this problem for the last 4 years @WeAreConfiant
If you're on the Goog's platform they do a pretty good job of cleaning that up quickly. Other plat's can struggle though :(
Good point, but now I'm going to make the opposite point just to justify my beliefs to myself; God forbid online ads _ever_ be questioned. 
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