Nine out of Ten Anonymous agrees that you're on crack, Cadmas.
The Tenth was JDMalkavich, and therefore saged the thread calling everyone casuals, but a voice is a voice none-the-less.
It's a Negative Skill. Negative Skills are never suppose to be helpful, ever. Not even on accident. Unless Capcom screwed up coding somewhere, while technically possible, would definitely not be intentional.
Tell me, though, was the guy you were fighting with using an Ancient/Rusted GS? I Know I could probably down everything in five minutes once I upgrade my Rusted GS to it's last level without an attack buff.