I wasn't able to find a zanz post mentioning it, but google showed the "Guilt" term showing up often enough here and there.
I'm gonna put up a silence / BH deck to test whether the guilt is overall or per card. I.E., can the AI do Silence, Silence, BH (silence guilt) - or must it do Silence, Silence, (guilt), BH+Silence. We'll see how it goes.