If you have an associate or an associate of an associate who is a known threat to national security, and the government submits a request for your data, you are specifically being investigated. From Google's transparency reports, we know that the number of foreigners being investigated is in the low tens of thousands, and the number of Americans being investigated is at most low single digit thousands.

We know that all corporations that had their inter-datacenter networks compromised (there is no evidence their databases were accessed) have since encrypted traffic on those links, making that a non-issue. The last remaining place to collect data in bulk is between the user and the service, which is what this blog post addresses.

The data-gifting is a figment of your imagination. Nobody will go out of their way to make their own data accessible to a third party for free, and these Internet companies in particular wouldn't share it with anybody.