I was happy for that info to go to potential employers, but not to random company and its canine friend.
Then MS bought LI and I was so glad I'd left years ago already.
I've seen one of two places have mandatory URL fields for LinkedIn profiles.
One of the impressions I've been getting is that if you do not fit exactly into an recruitment agencies process, you're DoA, and I have begun to suspect the only work they do is look at LinkedIn.