For a supposedly tech related group, I'm more surprised that you guys are surprised on whats being tracked. Yes Google has the ability to track A LOT because of the severvices most people use, but don't most people have an abundance of tracking and user metrics across their own product. I know every company I've worked at does the same.
> don't most people have an abundance of tracking and user metrics across their own product.
No product I've ever worked on does this.
But you're right, this is common -- and is why I have to block all outgoing internet traffic by default now. Applications can no longer be trusted to be well-behaved on this score.