I use Twitter for my forum. I don't behave irresponsibly on there because that's what I use to promote my forum and I don't want someone to get turned off by bad behavior and not want to join my forum.
My take on social media is a connection with the people you like. The behavior need not be professional but just decent and somewhat honest. I have 833 friends now with just about half of them active. From time to time I unfriend some of the inactive to reach my goal of 500 friends only. With that number I can react to all the posts even if not all of the time.