LMA – “Are you implying that “Lo Sachmod” is more chamur than Bo’el Aramis because it’s one of the Aseres Hadibros?”
Yes. Anything Meforish B’kra is more Chamor than something that at the most is Halacha Moshe MeSinai!
“Do you think Klal Yisroel thought being mezaneh is not a grave sin before Pinchos came around and killed Zimri?”
I have no idea what they thought, but they didn’t know the Din of Kanim Poigim Bo till then!
What is your obsession with Arayos? In my Torah there are 613 and only a few are Arayos!