Yes, the hashes are (usually) different due to different algorithms and/or salts. But, if you've brute forced one by using good guesses, and know the email/use

Yes, the hashes are (usually) different due to different algorithms and/or salts. But, if you've brute forced one by using good guesses, and know the email/userid for other sites, and the user used the same or a similar password...that doesn't matter.