There are other people named Blake Stacey around the United States. I know this because (a) I came across their records when opting myself out of person-search websites, and (b) sometimes they use my GMail address when signing up for things. (Or, to be fair, perhaps they write their address in a form and someone else types it incorrectly.) I keep getting customer satisfaction surveys and even credit-card receipts from an auto dealership in a state I haven’t even visited in years.
A friend of mine once inadvertently got access to the Facebook accounts of two total strangers just because airplane WiFi is strange.
Some people are victims of identity theft. Others are the recipients of identity gifting.