They had some terrible typhoons around the time he went silent and that ass of a leader they have is basically a damn dictator. I feel horrible and did come to enjoy talking with Ka. I hope one day he reappears just to let us all know he's okay but yeah it sucks.
If he has moved on to greener pastures then I wish him nothing but the best! But, I sadly doubt it.
You are/were an amazing artist Ka!