My Gmail account is the same way. I constantly get people using it as a throwaway email address for various dating sites, commerce sites, and porn sites. After enough annoying emails, I’ll typically change the account’s password or delete it if I can. (These sites usually aren’t the most reputable, so often times about the most I can do is change the password to lock them out.)

I don’t get why people do this. It’s not like it’s difficult to get a throwaway email account.