assume I know and understand that the LLM did not literally do the banning
I am telling, again, that the human did not use the LLM to think for them either. The admin took the decision to ban the user irrespective of the LLM, and the rest of our admin team and me specifically, would never let an admin become a "human in the loop". The LLM was used just to summarize, as part of the test, with a misguided inside joke on using OpenAI tech.
I will readily admit that there was mistakes made by the admin. Not on their actions, but on their visuals. Because those visuals were spun to keep feeding this made-up controversy. We didn't use the LLM to decide or even guide our decision, but it appeared like we did, and we already owned that.