Yeah, I can't get the article to load, but my reaction was pretty much the same.
It's about their "Invite people to LinkedIn" scheme and how they make it very easy to spam everyone you've ever communicated with. Or in the case of addresses like iTunesConnect, everything you've ever communicated with.
I remember my first day on the internet as well. Complaining about linkedin has become as passe as getting upset when paypal freeze your account.