> Even though you’re increasingly being annoyed by recruiters LinkedIn does little to stop it.

... I joined LinkedIn to connect with recruiters.

Why would anyone want a professional social network if you aren't specifically job searching or seeking clients?

I don't feel the author has made a clear point here. Yes, the model has switched from companies posting content to individual posting content, but I don't understand how that is a problem. It's a mechanism for businesses and professionals to connect. What does the author expect it to be?