What you've described is common among many first adopters. I know someone who has a common first name and last name combo, signed up for gmail in mid-2000s and

What you've described is common among many first adopters. I know someone who has a common first name and last name combo, signed up for gmail in mid-2000s and use the firstname+lastname@gmail.com. He got many "weird" messages over the years from messages addressed to a religious minister, to a pro-gun individual and to NSFW account that he didn't sign up for.