Well to be fair, it's true. Quickscoping is a good skill to have in a pinch, but if you base your playstyle around it you can't expect to do good.
If I see someone constantly going for railguns and only landing about 70% of their shots, I'm not gonna be impressed at all (especially in search where everyone and their mother tries to fucking railgun.
But if someone is a gosh darn golly gee whiz good sniper, consistently landing their shots, and then someone gets the drop on them and they pull some crazy shit, then that's impressive. Cuz that's someone who's fucking mastered quickscoping, rather than someone who spends every other game trying to trickshot everyone.
I think trickshotting is stupid; its all luck. Every montage is all the same thing: jumping 360 noscopes that get old fast. But other than that i respect people who railgun and the filter that makes me say railgun