3 ms·

Can you go into a little more detail or provide a pseudo example? I'm confused at how this allows spammers to self-identity.

• gumby 6y ago
  If they strip it out you know the want to spam you so can block their domain and/or decline to sign up.
  • philote 6y ago
    And if they don't strip it, you can add a unique identifier to your address for every site you use it on, and know who sold your address.