LinkedIn might argue that while those kinds of features and functions have their uses, the primary purpose of LinkedIn is provide a platform for professionals to network. And I would have to agree with them in that these features do not support that purpose.
LinkedIn has recently revamped Jobs, which was needed, and I've also noticed some developing business purposes and benefits to Endorsements, so it's not all doom and gloom over at LI. And they promise more features and benefits are coming, so we'll see.
Thanks for reading!