Before Halloween events rolled out, I had been spending a great deal of time in the Frontier. Game days on end. At some point, someone mentioned that Traders had finally stopped bothering them. Then I realized that I should have seen several over time in that area. I was filling creeper holes and planting trees. I have been online less lately and have not checked again, but still wondering about them. thanks for checking on it.
Had one spawn near me a couple of days ago and he invaded my wasteland house. He eventually wandered off somewhere, or was eaten by a zombie, or whatever. No llamas.