I get messages very frequently either from LinkedIn or some spammer or scammer pretending that someone I know, or who wants to get to know me, wants to “connect with me” on this particular networking device.
To all genuine folk, I just say that I am not interested in LinkedIn, and I only use Facebook sparingly and reluctantly. I can simply be contacted by e-mail, or if someone doesn’t have my e-mail address and wants to contact me, he or she can send a comment to this blog – and I will find his or her e-mail address (assuming it is a valid one) and will reply.
Simply don’t use LinkedIn because I won’t respond to any of those messages, genuine or false.