Two things: first of all, I didn't say, there is no reason to shoot RAW, there are many people who can harness the power. Noobs don't know what chromatic aberration is, hence I wouldn't expect them to be able to correct it. See it as a step-by-step process: you can go more in-depth later on.
If you see CA in your images (yes, I know what it is
), then you make the conscious decision to shoot RAW to have more leeway to correct it. But that gives people a wrong idea about photography: instead of focussing to get the basics right (essentially composition, focus and exposure), they read up on chromatic aberration, they learn that this may be avoided with lenses that have certain coated glass which has an anomalous dispersion relation, they start worrying that their camera has more noise than the competitor, all of which is useless most of the time with modern cameras. Instead of focussing on getting the exposure right, they shoot RAW. By the way, if you use a recent lens, then the digital camera automatically corrects artefacts internally such as vignetting. This information is also used by the RAW converter in your computer as well. There are also settings in your camera (e. g. Normal and Portrait in my D80) that allow you to influence to look of your pic.
