In the long run, I think that maintaining a blog does have to do with a programmers competence. Programming is a social activity. Communication and discussion

In the long run, I think that maintaining a blog does have to do with a programmers competence. Programming is a social activity. Communication and discussion are important. Even if no one reads your blog, the act of regularly putting insights into text form forces you to organize your thoughts. If affects your way of thinking and your approach to problems. It exposes your thoughts to criticism, or at least the possibility of it. Part of the reason I was recruited and hired by Yahoo, despite not having a lot of professional front-end experience at the time, was the fact that I maintained a blog about web development. I was told this by both HR and the hiring manager.