> At best, you replace trusting your ISP with trusting a different group of unknown people with similar motivations.

When one party with auditors says they will protect your privacy, and the other openly spells out in their stated policies that they will run roughshod over your privacy, cataloging and trading your data as much, as long, and as insecurely as they like...

You don't have to trust the former party a lot to recognize the lesser evil.