Using 15 percent as a quick nod while keeping VP near ninety feels practical, a bit like your hai idea from Japan. I do something similar, I bump light remarks with tiny power and save the juice for the rare comments that actually move the post forward. The dust for bots approach matches how I treat templated lines too, because paying real weight on teh copy paste stuff just teaches the wrong lesson. And when someone drops a gem I am happy to go big, even if my click finger thinks it is doing curls for taht one.