The terrorist recruitment videos have always been a problem as the content is uncurated but monetized. This is no longer being ignored by the brands who pay Google for ads, and the mainstream media. In February the snowball began rolling as Google are violating US Treasury Department terror fundraising sanctions if they pay out ad money to terrorist groups. Oh no, that sucks.

See the following links -
BBC Newsnight July 2014 : "Government adverts shown before extremist online videos"
the Times UK Feb 9 : "Big brands fund terror through online adverts"

Adland Feb 9 : "2017 Superbowl commercials appear on Youtube pre-roll before ISIS videos"

The Register UK Feb 10 "ISIS videos, adtech, and the 'smartest guys in the room' (Google)"

.... Which lead us to:

NY Post march 25 : "After a worldwide advertising boycott, it’s time for Google to face up to its responsibilities"

The Times UK March 28 : "Google faces $750m bill in video boycott"

And now that Google finally took action, they did it on a very clumsy manner which unfortunately, does squeeze content creators (AdAge March 30) - this is not the first time that has happened though. They had similar issues last fall when the hashtag #YoutubeisOverParty trended.

To pretend ISIS videos had nothing to do with the current ongoing boycott, and the ensuing tightening of Youtube content rules would be silly. I'm not very silly.