User blog comment:LegoI3rickI3uilder/LMB Breaking News/@comment-4052371-20120529151218

Keighlian didn't mean that they would delete all duplicate accounts. Take a look at one of his later posts:

"What I'm saying is that if one of your accounts is known to have caused trouble (like persistent spamming, purposely offending others and so on), to the point that the only way to deal with you and that account is to ban you, all other accounts associated with your email address will also be banned. It's not really to do with duplicates.

Either you're a problem user or you're not. If you are, we'll disable everything related to you. If it turns out that a problem user shares an email address with a well-behaved brother or sister, the parents would need to contact us to have the well-behaved child's account re-enabled and explain the actions of the offending user. "