I guess he asked this question because the profile page has a field about the number of blogs.
@GGPlayer oh, good guess.
@Alex_F the community wasn't custom-built by/for Public Mobile; it's run on a commercial community/forum platform called Lithium. It offers a bunch of features, which Ltihium's customers (many companies and organizations) can pick and choose (enable or disable). PM doesn't make use of the blog posts feature.