'If I'm frustrated with some task, can I not say so? If I've been stuck on some problem, I can't say so to my friends?' You have full right to say whatever you

'If I'm frustrated with some task, can I not say so? If I've been stuck on some problem, I can't say so to my friends?' You have full right to say whatever you want, but don't expect your employer not to take notice if you say it in public. And don't expect your employer not to do anything of they hear your rant. The problem is the implicit expectation of Facebook privacy, For which there should be none. If you want to safely rant, do it in your home with your friends in the room. Every other medium (email, Facebook, twitter etc) involves intermediaries which could leak your rant. But don't complain that Facebook isn't private.