one guy on hoofman's forum actually wrote this (my italics)
"Obviously YOU require x y and or z. But others don't, and it's not YOUR place to keep prodding them to do what they don't want or need to do. Your religion is measurement and scientific scriptural jargon. Address this with Furutech themselves. Or start a thread about BAD manufacturers who won't prove scientifically their products efficacy to your satisfaction. (As far as I know there's no law requiring this, especially not to your satisfaction)."
this is why we are doomed as a species
Yes this sort of thinking can get quite scary.
I attended a flat earth society local chapter meeting one time to see if I could engage them in any sort of logical way. I only went if I was guaranteed two things, first religion will not be brought up and cannot be a basis for the model. Two, they were open to doing experiments correctly. They showed me their model, and although admitted that their model was incomplete with all sorts of holes I will give them creativity bonus points. Also they were very proud of their model and worked very hard at it so I didn't want things getting nasty quickly. We moved on to experiments. Curvature is the angular turn per unit distance, when trying to measure it in terms of distance only causes trouble even though it sounds simple and is a logical way of doing it. Their "truth" was measuring distance over a body of water and said they were not supposed to see the lights of the city on the other side. I'm sure most of you can see already see some issues here. One is their eye balls are not laid directly on the same plane as the surface of the earth, your eyes are going to be about 68" from the surface. So while they used the defined curvature of the earth given to them they didn't understand how to measure it in a meaningful way against their line of sight. I didn't want to get into refraction of the water so it took quite a long time to show the math explaining the curvature part, a quadratic equation later I lost everyone in the room, they had to reach out to a higher rank official asking to look over the math, supposedly this guy was a student at Boston College. The math was confirmed and some were swayed to understand why the could see the city and acceptance was good. Some were still confused and not exactly on board with the idea. A few were very angry about the situation, they wanted to device another test to do actual measurements so an idiot purchased a very high powered laser. Time went by and we all agreed on the method, it was straight forward and I'm sure you could get what we are doing. Well, wouldn't you know it, when we calculated out a time where we should be able to align the laser with the target the math was spot on. Then when we got below the curvature of the earth you shouldn't see the laser, and of course you couldn't. It was great to hear them on the walkie talkie saying ok bring the laser back up to point B, and it would appear, then they would say ok now down to point A, it would drop below the curve. I went home because after two hours or so they were still playing around with it, scratching their heads trying to come up with an explanation that why this would happen with a flat earth and why it aligns perfectly with the curved earth formula. The argument finally went to religion on social media once we destroyed them on the physical matters so we gave up trying to help them.
It always boils down to some sort of religion and you will never convince these people of anything that disagrees with it.