You're attempting to make this part of the conversation about moral failings and that has nothing to do with why we should question testing from an unreliable source. This isn’t about redemption, it's about science, and if you've passed on bad data, then extrapolated conclusions that weren't only wrong, but harmful that doesn't make you a bad person, but it absolutely calls into question everything you do before or after unless you're completely transparent about how you're correcting your methodology and even then we should still look to other tests to confirm your findings. If Luv Them Knives was an impartial source doing blind testing and reporting results mistakes would be much less of an issue, but that's not at all the case. Given that, the best thing to do is to, at absolute best, accept his tests as a single data point to be taken with a significant amount of salt and wait for confirmation from other, independent sources, it is certainly not to accept them as gospel.