Because when typing sound cannot be conveyed unless the recipient believes that a certain method of typing indicates to the volume of the typer's message, thus creating the inability to actively type in a louder volume?
Geary: That means you get a companion for four levels, then it gets an upgrade.
Draykin: A very PAINFUL upgrade.
* Digital_Vulpine eeps, since the rules don't specify that I'm exempt from the psychic link that Wizards have with their familiars. o_o;
Geary: GET YOUR PET DRUNK.