When you keep people in the dark and tell them everything is OK,
while they can plainly see it's not...emotions run high.
Everytime Google pulls the rug on everyone, people go out of business.
That's not a game to those who are playing it.
If you notice people becoming more and more aggressive about the secretive and hidden knowledge each has on the topic of PPC...
I wouldn't blame that on people so much as I would on the purveyors of the secretive and hidden knowledge. (We won't even touch on the topic of SEO!)
It just seems as time goes on, the Big 3 are nurturing some major issues with their advertisers and are insistent on playing a relentless game of cat and mouse with people's lives.
That kind of stuff tends to raise tempers.