You're right, this needs clarity. The news forum was originally designed for me to post news stories into that I would be using to share on our FB Page from here, driving traffic to the site and only staff could post to it. However, people were asking to post in there so I opened it up, this is where the confusion lies.
I'll probably lock that back down to just staff (for new topics, everyone can still reply) and make that clear in the sticky and encourage people to use the other forum(s). I'm about to announce a new forum as well.
As for the topics moved to Arkham, jk was posting them all at the same time and spamming it up, regardless of what side of the aisle one is on we won't have that here. So I started moving them and eventually had to stop him by removing him from that forum for the day.