I had a personal FB account for many years on which I wasted much time, kept in touch with friends, learned much and shared information which I found interesting. I deleted that account as a liability and now only maintain a FB page for my business, which has been remarkably effective in promoting sales, so I would be a hypocrite to trash Facebook, but I wouldn't maintain a personal account. LinkedIn is a sufficient venue to establish your experience and credentials and make sure your name shows up in a Google search if someone is vetting you for a transaction, but a personal Facebook account is an open invitation for me to act like a wacko, as I've already demonstrated on this forum.