That’s beside the point. I was pointing out the incongruity of Benignuman’s position
That is my point, the halacha in many cases is ambiguious (Ellu V Ellu). Until this problem is solved one halacha for everyone , it is impossible.
Ignorance of the law is no excuse, but what if there are several laws that contradict (One Rav says Assur and another says Muttar)