Some JWs and exJWs seems to be THE most obsessive and retaliatory individuals I've come across. Have a disagreement with some and next minute they are crawling all over your LinkedIn account and sending you emails threatening to ruin your reputation and posting lies about you.
My advice would be to not give your name. What for? To make contact with a few other exJWs in the area? Concentrate on making friends outside of your JW past and not limiting yourself to one group of people.