Please make a chat for friends only..
well just use this command
"/f"
"/friends"
It will go to all of your friends in your friend list.
They, cannot chat with each other but at least you can get your message out easier.
EDIT: Thanks Waffleconecake!
If they spam, their voice will be hoarse for 10 mins.
E.X.
Knight1:(Friends) WTS 10 CE
K1:(Friends) WTS 10 CE
(Your voice is hoarse)
meh, I wouldn't use it but I can see how it could be helpful. I just feel like it would be abused to spam trade ads. so I'm at +0.3 for now.