What it does not say on the tin is that the companies will sell your address many times over, resulting in a torrent of spam. I have my own domain, so I can see

What it does not say on the tin is that the companies will sell your address many times over, resulting in a torrent of spam. I have my own domain, so I can see exactly where those spam originated. Then I used the site a few years later, with a new email, and that one got a torrent of spam.