I don't think it does necessarily, although it might be a symptom of lack of confidence or dissatisfaction with your work programming. I think having a broad range of interests - reading, playing music, drawing, socialising, sports - makes you a complete human being but programming for yourself, at home, should probably also be something that gives you joy. Rather than asking whether you're a 'bad developer' maybe start from the other end: 'What is preventing me from hacking at home? What spoils it?'
The other thing I recommend is to do the kind of programming that YOU enjoy and NOT the kind of programming that you think is necessarily 'important' or 'difficult'. All you need is that ONE opening, that ONE gap into accessing the joy of programming.
The other thing I recommend is to do the kind of programming that YOU enjoy and NOT the kind of programming that you think is necessarily 'important' or 'difficult'. All you need is that ONE opening, that ONE gap into accessing the joy of programming.