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> I am not sure when my `yahoo.com` account was created but it was in the late 1990s. I have never ever used the address anywhere. It gets lots of spam.

Mine has been around since October of 1996. It, too, gets lots of spam.

> I have a low single-digit Slashdot account.

A friend of mine has slashdot uid of 6. He must have known the original crew.