Here's the difference between you (random forum member) and dark10x: You see the graphical anomalies, but you couldn't give a shit, because you still enjoy the game. Meanwhile, dark10x is sitting in his dark bedroom in his basement and is inundated with color banding, dithering, low-res textures, seams, clipping, etc. so much so, that he decides to immediately log into his computer and nitpick on GAF about things that happen in every game, on every console, due to either restrictions in hardware or developer limits.
What's the point in posting what you post when mostly everyone sees exactly what you see? You think you have some kind of 6th sense that only allows you to see the minor visual decline in RE4? I don't understand you. You were at your worst when Splinter Cell came out for PC.
The game you bought is the game you have to deal with. We all see the graphical (and otherwise) incongruities in games. They're there, they stay there, there's not much you can do about it. Pointing and complaining does nothing.
Ever thought of making a website with a games database where you point out every instance of dithering, banding, DOF irregularities, etc.? That would be interesting.