It seems pretty clear to me that some of the complaints are from people who post here but use a different name there.
I have read that there are federal standards for how many rat droppings are allowed in a given volume of food. This means to me that zero rat droppings is not the standard. Is the standard zero mold? If it is, as I mentioned elsewhere, I have found mold on products I bought in food markets. I once bought one of my favorite brands of ice cream and it was half full of something like sand. I simply returned it and got a replacement. I didn't even think it was a big deal.
What is amazing to me is that one person has found mold three times and many people like me have found mold zero times. Someone could figure out probabilities for cases like that.