That's pretty much my reaction to recruiters and HR wasting time on linkedin bots.
All I can say is good. The sooner LI put in actual usable controls, the better.
The fake profile is an ordinary tech worker, not esp. skilled in anything and with a short work experience; but it's a lot of fun to be fake... My alter ego has 50+ connections now. There are moments when it feels quite real...
I have seen most of this activity with an address out of the DC area and I suspect they do this systematically and collect 2-3 weeks pay until fired at multiple companies.
Fake profiles seem incredibly easy to avoid because LinkedIn is one of the few "real identity" social networks.
I can only conclude that they don't care.
90% of those on Linkedin at least.