Often I hear this “soft harem” term getting used. It has been explained to me that a soft harem consists of a man having sex multiple women at the same time, with or without their knowledge.

with or without their knowledge.

So does this include men who pretended exclusivity was there and it wasn’t?

Because faking exclusivity and not actually doing it is what cheating is, breaking the rules of the monogamy agreement.

It’s way easier for any average guy to cheat than to get multiple women to agree to a situation where they are fully aware they are sharing a man with other women.

If ‘soft harem’ also includes cheating, why is it used as a way to show a man is high value?