Six pages in and not one account of a failure...just rumors. Is this "lube shaming" LOL

We've run Penn Grade (old Brad Penn) for years since losing three separate engines to cam failure. The failures sent debris through the engines and required total rebuilds in all cases. This with flat tappet cams. Since switching to Brad Penn, no failures.

Does anyone have a personal experience with a true, oil-related failure due to Penn Grade? I just bought another case of 10W30, and have no plans to change until proven it's not going to work.