You could consider that Alphabet buying Nest and them shutting down all service was in a way Google stopping operations on that.

But I believe that is mostly related to the unending list of services they have stopped. Code, Reader, or even APIs and libraries they stop without a single warning (cough cough angular v1.x).

Seriously, the list is big. https://en.wikipedia.org/wiki/Category:Discontinued_Google_s...

I have no faith in Google's ability to deliver consumer services that aren't part of the core business and are free.

Facebook is eroding that core business, so I expected more belt-tightening in coming years.

Google Reader, Picasa and many more: https://en.wikipedia.org/wiki/Category:Discontinued_Google_s...

Nest remotely bricked Revolv devices a year and a bit after acquiring the company.