I've seen people mocked for it before. I think the people doing the mocking were small-minded idiots who couldn't understand that a forum with one top-level poster is isomorphic to a blog with comments.

But I must admit, the initial impression of a 'forum' where all the topics are from one person looks a little bit like it might be a crazy person debating with themselves. (In this particular case, it looks like people other than Agner also create topics). Ideally you'd maybe re-skin the forum?