[llamathrowaway]

While I understand the privacy/tracking problems, why would password breach be a problem, if you are already using a password manager which would supposedly make it easy for you to use different passwords on different sites?

[aiyodev]

Not op but I think he means that he would get flooded with login attempt/password reset attempt emails from other sites when a username is leaked. Even though his password is likely safe, he would still have to log into each one of these services and update the password to be sure.