It's none of my business - but are you the Yaobing from UConn the a PhD in Physics?
Yeah, I have a profile on LinkedIn, but I did not put much info in it. That is why you had to guess.
I haven't put much into my LinkedIn profile either, but I get solicitations from recruiters constantly. It's amazing how pushy they are and how shocked they are when I tell them that I'm happy with my current job and have no interest in making a change. If they really get pushy, I tell them how many vacation days I get (I've been with my current company for almost 20 years now) and ask if the job they have in mind can match that - that usually puts an end to it.
FYI - it was Yaobing that pulled me into the JR orbit all those years ago - Kudos to Yaobing!