That's not the problem. The problem is that the e-mails, by their very nature, are opt-out rather than opt-in. One reason people seem to complain is because the

That's not the problem. The problem is that the e-mails, by their very nature, are opt-out rather than opt-in. One reason people seem to complain is because they have to waste time logging into the site, finding the e-mail opt-out section, and disabling whatever "service" is responsible for the torrent of spam. And that only works until the site's next "user experience" update.