Ask HN: Why are web services still emailing me?

I am a member of various job boards, mainly from when I was out of work (somewhat employed now as a consultant for Samsung).

What I don't understand is that nearly all of these job boards, and plenty of other services I have signed up to have all been sending me emails despite the fact that I explicitly checked "Do not send me updates or emails from the team", or "Do not send email results, I will login and check for new jobs".

My question to web service developers:

Why do you do this? I genuinely miss getting emails from actual people, and it's somewhat shocking now that I treat an email from a human being the same way I treat a handwritten letter from my best friend in D.C. because it seems they're becoming a rarity.

At least outside of the office environment.