I fully support this decision. If you're offering a service that is public, with the intent to your users that such information will be available publicly, you cannot then police what users of that data you consider to be "public" because it serves your business interest. LinkedIn, of course, wants to get all the benefit of the public Internet with providing as little as they can. This, coming from someone who used t…
This is a tricky issue that has more to do with user psychology than technology. While the data is public, most users do not understand the persistence characteristics of data, especially in the presence of 3rd parties. In a world where there are no (persistent) copies made by third-parties, the user still is in control of the visibility of their data by updating their profile directly on LinkedIn to show/hide pieces…
What choice? The only choice you have is whether to post public info or not. You have no choice over what others do with it. You can't police what others do with information that you freely publicize.