Re: I'm using credentials I know have been stolen
Yup, and in fact, "leaked" creds are great, because there are some older sites where I've used a crappy password associated with my main "social" email address which was later hacked, but I also use that address for sites I care a little bit more about and I use a better pword for those.
If a leaked password means that they're not going to try and brute-force attack passwords associated with that email address, great. It probably doesn't in fact mean that, but honestly, they can have it.