Incorrect. It almost all is. The idea that it’s bad for the seasoning comes from back when people were using lye to clean dishes.
It’s not “burned” its “polymerized.” It’s the oil, not the food, as the oil doesn’t create the black bits. It basically turns to plastic, which is why you get a smooth shiny surface.
Yeah but
Most dish soap isn’t mild, and its unnecessary.
Its about the black burned in that needs to stay.
Im using my cast-iron over actual fire (not gas) so that might explain the difference.