LinkedIn is a professional network. LinkedIn should want to improve credibility of the professional credentials & demographics that are recorded on LinkedIn, for the growth of their money-making businesses of “Jobs”, “networking”, and even “Ads”. Alas, Endorsements are targeted to something else altogether. Traffic & social plug, it seems. For the sanctity of professional credentials of millions of professionals who made you the leading professional network, LinkedIn needs to rethink the implementation of endorsements. This is net-net negative value right now!