Beginning with the invite method. The fact that people can be invited to this without realizing it, will accept the invitation without knowing about it, and have their chat channel switched automatically to the novice network is in itself something that can confuse new players.
The next thing to address is the fact that participation is totally binary; either you're keeping your new adventurer status on and accepting the fact that you will be randomly shoved into a chat channel, or get rid of the status altogether and get rid of that useful icon that would let people know that you're new to the character. It's very simply addressed, really. Just let people exit the chat channel at will.
That suggestion would also address another problem I saw mentioned in this forum, which is that of the channel being full at times when people are looking to get in.
The network seems way too broad and sweeping in the way it operates... I hope to see the system fine-tuned in the near future.