On top of that, rather often other people sign up for accounts using my email address, which is my first name + my last name at gmail. I'm guessing they missed

On top of that, rather often other people sign up for accounts using my email address, which is my first name + my last name at gmail. I'm guessing they missed a number or middle initial. I could password reset their account, but that seems legally/morally dubious. Fortunately nobody's signed up for an account for anything I'd actually care to sign up for myself. It's usually some grocery store in Malaysia or something.