It is weird.
Until further notice, the ruling is, that you can communicate silently, but need to have astral perception on.
Of course any other astral being nearby will hear.
There is a spell, I think for telepathic communication, that would be sniffer-proof.
Sorry guys, for the delay, I kind of lost the spirit for PbP after Kour's dropping out.
Had few weeks of vacation, to recharge the batteries.