Some people disagree. If they didn't, why is this on HN with a lot of comments from people who a unhappy with this change?
If software compromises my privacy, I feel that I have been betrayed and lost something that I can not take back.
If you don't get to automatically participate in a "anonymous" usage survey, have you lost something you can not undo?
That in my opinion, is why software should always err on the side of privacy.