100% agree with what youre saying.
but..
The sharpness tester
only tells you how sharp your edge is on that point, nothing more. No edge retention, not if its a laser or thick knife, not it it is teethy enough for peppers. So if you want to judge on those aspects after sharpening, we shouldn't even talk about this sharpness tester.
This thing doesnt say 'well, you reached this and this number, now you can cut unions or carrots the way you want'
So it might be that one knife with a score of 100 is very good in cutting carrots, but the other with score 100 does a bad job. It only tells me something about how my edge finish is compared to ---the last time i did this same knife/ other people using the same tester---
Dont use or 'criticize' (or not really doing that) it for things its not intended for,
Next to that, lets not forget that most of you here are way beyond a level that you need, or will benefit from, or
take joy out of using a sharpness tester to see how well you did. I bet you dont even need newspaper to test: you probably
know when you did a good job. If I see little videos of kippington dulling a knife and within 40 seconds he moves through 3 gritts and has the knife razor sharp again... Dont tell me he still needs newspaper or dragging his nail to confirm he is done
A few around here (including me) are still lesser gods
We are glad when our last knife is being sharpened better then the knife we did before that, which shows improvement.