Dropshotting is just something that is in the game, and is perfectly viable. It takes time to learn how to do it, and it won't always benefit the dropper. There's nothing wrong with it.

However with panic knifing, it's stupid how there are several situations where someone is almost guaranteed a kill (ie. Close range with a shotgun), but is then cheated by a poor insta kill mechanic which should've been fixed a long time ago.

I wouldn't mind if they changed the drop and the knife to something more like battlefield, where you can't shoot while dropping, and you can't get a one hit knife unless you strike at the back of your opponent.

Would that settle the argument?

It's an effect with the colour curves, essentially changing the source and contrast of the light