Earlier quoted context omitted.
Well of course Gmail scans your email. Spam filtering requires scanning, not to mention things like putting labels in the emails. Why do you think Google would sell pii? It doesn't make business sense. (I work on Gmail)
> Why do you think Google would sell pii? It doesn't make business sense. In these discussions, "selling PII" is sometimes a short for "providing a service that allows targeting ads based on PII without actually releasing PII itself to the service users", which is only a little less bad.
Also, from a privacy perspective, there is a vast difference between the two. One person who you trust to keep your data safe (but not to use it in ways you find ethical necessarily) is vastly different from them giving it to other parties who you don't know.