

very sane reaction.
I have to say though, haveibeenpwned is very well regarded in the industry, and is run by a well known security expert. A leak from there would be quite the blow to his reputation.
https://en.wikipedia.org/wiki/Have_I_Been_Pwned
That said, while I happily give them my email-addresses, I have never given them my password.








I’d argue though, if you use a single password for everything, its probably more secure to add it here to at least get an indication when it’s breached. Your surface in that case is already so large that the difference is negligible compared to the gained warning.
That said, don’t reuse passwords!