The sort of information they could gather from a site like this would be a list of license plates that somebody is worried about being tracked. I can think of several government organizations who would love that sort of information right now.

It’s a sort of Streisand effect

For data leaks, haveibeenpwned only requires your email, and they send you a notification if it ever shows up. They don’t actually check passwords.

Unfortunately there’s no secondary info linked with a license plate that makes doing this sort of notification private without just downloading the full database locally.

I’ll be honest, I have more concerns about this site potentially logging my license plate than I do of someone having already looked it up.

It’s a little like if haveibeenpwned asked you for your password to check if it’s been leaked.

I’d also argue a human monitoring your conversation would likely make similar mistakes in judgement about what’s happening, and this kind of invasion of privacy just isn’t okay in any form. There could be whole extra conversations happening that they can’t see (like speaking IRL before sending a consentual picture).

“A computer can never be held accountable, therefore a computer must never make a management decision.”

– IBM Training Manual, 1979

We’re going so backwards…