I have a fairly unusual, albeit not unheard of, first name. As far as I can tell, I’m sharing my first and last name with 5 or so people in the US. Back in 2008 or so I nabbed first.last@gmail.com (I also own www.firstlast.com haha). Every so often one of my brethren will use my email at dicks sporting goods or something. I always finish activating the account for them and sign them up for text alerts or something. Nothing evil. I figure they can just reply “stop” to opt out.