Well, I notice that there are quite a bit of guests walking around these forum and like NO members on except me. So you should think of making posts not viewable by guests so you will receive more members.
being guest is fine. It is a common "right" in the internet to by anonymous and just cruising. I don't mind it personally. I am not always on, but I get the new threads alerted to my RSS reader so I can keep taps on the forum.