any attempt to leave preventative negative ratings without evidence is not only a fools errand, it creates tons of signal noise allowing real cons to blend in, opens numerous avenues for other abuses, and creates endless conflict that is destructive to the overall community cohesiveness here.
I climbed high onto default trust by leaving preventative ratings. I may have gotten it wrong a few times, but most of the time, I can judge people pretty quickly by how they act/react.
You can call me a fool (unsubstantiated), but your method doesn't seem to work. :/