quad9 and trust

[http://dummy.us.eu.org/robert (Robert)]

I do see this:
https://www.reddit.com/r/PrivacyGuides/comments/13dslf0/comment/jjq09on/ ,
but it indicates that all PII is not logged.

Regardless, you do need to pick-your-poison.  I guess I'd prefer to trust
Quad9 than to trust my ISP's DNS not to get poisoned.