So i just recently thought of this. Admins can introduce themselves to make the player aware of who are administrators. So admins can make threads and newbies can ask questions. But there is more:

A player will have a kit of instructions and tutorials of what the forum is all about. Also, there could be a thread for People under blue belt to get them the feeling of how fun the forums can be, and if they feel good enough to not use it anymore. Why? Because my feeling is that players may have trouble with the forums and put them off . Getting them used to the forums can make them more comfortable. Doing this could get more players to come on the forums rather than stay in game not noticing till they are brown belt (lol).