Reply To: If your friend eats chalav stam, is it evil…

Goan
I don’t know that Rav Moshe considers it a kula. Certainly the story in the Rav Gerstner biography where he and rav Gerstner argue the point with the alter mirrers seems to imply the opposite.
The concept of chalev akum is based on sofek/chashash, even far fetched. Theoretically, if there was 0 chance of pigs milk there is no issur. Rav Moshe’s tshuva only says a baal nefesh should keep it, which as i understand those words, means its a worthy chumra.