bad idea
a site like https://haveibeenpwned.com/ but it confirms that you really were pwned by saying "it looks like your password is $PASSWORD, is that correct?"
bad idea
@monorail *types in the email addresses of a bunch of other people*
re: bad idea
@monorail hee, i know you know! ^^
it was actually mostly for anyone who saw this but didn't know why it was a bad idea
though, if something like that existed, that would probably *really* make someone avoid password reuse