Plenty of people find coding fun but don't have github accounts or do much coding after work. This is especially true if your work is very interesting. You find that you have less itching to scratch so to speak. I love coding. But I don't feel I need to do any outside of work because I love the projects I get to do at work.

But yes, people who code all the time can be interesting. I just don't want the industry to demand we all do it.