It sounds to me like he's just saying he can't post a thread in his guild's forum. FWIW it's working fine for me.
Yes, this is the problem. I am unable to post a thread in the guild. I created the geeklist and then want to post a thread pointing to the list.
I am using Firefox 22.0 and keep it up-to-date. My OS is Windows & Ultimate and it too is kept up-to-date. I have now experienced this on both my laptop (HP) and my desktop (Lenovo).