Except that your accounts have a long history of going after me at every available opportunity. It's interesting, I'm just reading through your posts on both accounts, and the pattern is clear.
But regardless of that.
The box you are referring to says
"Receive FORUM announcements and important notifications by e-mail"
This was not a forum announcement. And notification, in this sense, is of or pertaining to the forum. Also, there is no actual "opt-out" checkbox. And that is why your argument fails.
But, in any case, you'll be pleased to know that one of the things planned for the Winter holidays was the production of a privacy policy. It was supposed to be ready by the time the full site launched but there simply was no time, and then uni started. Until then, I hope you see why your complaint will not do anything but garner negative attention for you. Have a good day. I'm done with this loaded 'question'.