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

If your posek holds Cholov Stam is assur, giving CS food to another Yid (who uses it) makes as much sense as giving another Yid (who uses the eruv in NYC) a package to carry on Shabbos if your posek (i.e. Rav Moshe) doesn’t hold neighborhood eruvim in Flatbush, Boro Park and Manhattan are valid.