Communication: from the player's perspective or character's command

Most communication channels in the world are intended only for discussions from the perspective of your character role-playing communication. If you are shouting, gossiping, yelling, or congratulating someone on gaining a level -- all of this is done by your character within the framework of role-play (your class, race, clan, etc.). For example, a light Knight might gossip "Come out, dark fiend" in response to an offer from Invader in his PK-range to fight, but this does not relate to the player controlling the character. Conversely, talking about "I have lag" or "I will be AFK" seems strange from your fantasy character's perspective.

For out-of-role communication, use the ooc (out of character) channel or cozy chats in Telegram and Discord. For role-playing communication, all other channels can and should be used. For gross violations of communication rules, you may receive a penalty silence from the Gods.