As I read it, it was referring to a post on another thread that stated "it is against the code of ethics..." and stated that the poster had to block her own clients. So it appeared as though written by someone who identifies as a therapist of some sort.
I have read countless posts where people have indicated the therapist themselves told the client it would be against their ethics. Granted - I don't believe therapists actually care one whit about ethics but they do seem the over-use the phrase to protect themselves from clients.