I agree with others who have noticed duplicate profiles (which isn't LI's fault) - and especially the "endorsement" thing. I make a conscious attempt to endorse ONLY what I know about a person - and some people I know fairly well, but don't know their expertise in X, so I don't endorse that.

I like the recommendations feature - but suspect that may become a load of BS if others just ego-stroke.

Guess nothing's perfect. But if I notice additional junk mail, I'll be gone.