I like the LinkedIn approach better than the FB approach.
LinkedIn is a more useful, professional kind of social media site. It's used extensively for professional networking, HR recruiting, college alumni groups, etc. Although it's not perfect, it does have a better reputation than most social media sites and better embraces "values". Encouraging use of sites like LinkedIn lets scouts know how responsible adults use the internet.
On the other hand, Facebook is an insecure site favored by marketers, hucksters, manipulators, hackers, perverts, and criminals. Facebook has been facing