I know this is a few months old, but I had the same issue. I created new accounts for Facebook, Twitter, and Instagram, but haven't been on LinkedIn in a long time. Someone mentioned LinkedIn the other day which prompted me to think about it. I had forgotten about LinkedIn. I don't want to create a new account because I would lose my existing connections, but there are also some folks on there who I don't want to tell. I've already dropped a couple of people and will probably drop one or two more and then change my name on LinkedIn.