[sfilmeyer]

Troy Hunt has been running Have I Been Pwned for years. He even uses the k-anonymity model to allow you to search if a password has been pwned without giving him the password if you don't trust him.

I get your general point, but he's been a leader in this space and walking the walk for a decade. I'm not even into security stuff or anything particularly related to this, and I still recognized his name in the OP domain.

[kmeisthax]

More importantly, since HIBP sells monitoring services to 1Password, if they were maliciously collecting this data they would be immediately sued to oblivion.