Ok I agree with guild messages, but I don't think the other suggestions are really necessary. First Jr masters can just pm you if its important enough to need the chat clear, and second just don't make people jr.s without knowing what they'll do. There's no reason to make them Jr. if you don't want them to have the permissions of a Jr.
I didn't even know this was a thing, but I agree, we should get this. It's quite overdue, and the fact that other versions of the game besides KMS, except us are receiving this makes the fact we don't have it even more ridiculous.
I would also suggest the flames be replaced by a nebulite box (since we don't get flames), this should have happened every other time flames were originally supposed to be rewards as well.