One solution to that is to use a pseudonym that appears to be a real name. [You’re certainly not going to get away with calling yourself “Explodo” on Facebook or Twitter — unless you’re a drag queen, of course. See the Examiner article linked above.]
If expressing yourself freely on venues utilized by a wide variety of people is important to you and you want that part of your life separate from your Official life, that is an option.
On Facebook, I am connected to and have conversations with conservatives, libertarians, homosexuals, pagans, hard-core leftists, Democrats, evangelicals, gamers, artists, technicians and people of all ages.
Not possible here on FR nor on DU.
I have found it invaluable to have access to multiple viewpoints and find ways of keeping dialogs civil and productive — when possible.
What are these you speak of