To the anonyous bloggers.
Rick Ross: To the rest of you who blog without identifying yourselves, have some courage and make clear who you are. Your anonymous thoughts are not interesting contributions to the larger social dialogue of the blogosphere.
Like Rick, I prefer to know, or at least to think that I know, who is behind each of the the weblogs that I read. However, I disagree that "anonymous thoughts are not interesting contributions to the larger social dialogue of the blogosphere." Anonymous weblogs play an important role, especially in places where freedom of speech is limited. I think most would agree that the anonymous Bagdad blogger made some interesting contributions and that anonymous Iranian bloggers are likely to make some interesting and important contributions as well.
That said, a Roller-based weblogging system like JRoller is not really a good place for anonymous weblogging. For true anonymity, you need something like invisiblog.com or this proposal for MovableType.