There is good discussion happening on Reddit, so I figured I would address it.
flapanther33781 is right. Other 3rd parties are committing fraud while Google is benefiting a great deal, so Google is responsible by association.
Pandalism Yes. But this was a targeted location with no ability to just type the region to get the ad. The first thing I have checked was that the traffic actually originated from the right location. So the bulk of the traffic really originated in the middle of the night. One article pointed out that adult traffic is often sent to websites (without the user even knowing it). Hence the hours maybe?
pemboa, d0t1q, chumbaz, meeu I did see traffic in the event logs. What I did not see is enough engagement to load the landing page. Unless the page is slow to load, my assumption is that most people would wait to see part of the page load before deciding whether to close it.