Offense is in the eye of the beholder. As a rape survivor, I think psychological rape is an appropriately analogy for what I once experienced in therapy. I mentioned what happened in another thread. While it's not my experience in therapy overall, a therapist penetrating my defenses and exposing the contents of my inner world--my dissociated parts--sure did feel like psychological rape. I did not consent to such an experience as I was seeking help for concentration difficulties.
The title of the thread "therapy is bs/wrong!" may clue people in that the thread may contain things that speak of therapy unpleasantries, so the act of coming to this thread or maintaining a pattern of coming to such threads may contribute to one's own reactions, which may include feeling offended.