Loren McDonald on FISUE Syndrome

Yesterday, Loren McDonald blogged about "FISUE Syndrome." What is it? It's where a recipient "Forgot I Signed Up for Email." He writes: "Was That Email Spam? Or Just Spam-Like? Earlier this year, I received an email from a presentation company that I was sure I had never heard of nor done business with. [...] I didn't know who this company was or whether I knowingly opted in for email, and I still don't."