Well, I didn't check the git history so I can't confirm or deny that he implemented the feature, in any case, if you read the comment about how the passwords are anonymized it sounds pretty reasonable.

Leaving that aside, even if you diagree with it you (the user) are not entitled to anything, especially not entitled to have an attitude.

Just think about it differently, what do you think would happen if you do the same in the real world?

I'm pretty sure in the best case scenario you may be asked to leave and in the worst case scenario you may be "escorted" out of the premises.

A little bit of politeness goes a long way.