Some of those "problems" in the previous post are not necessarily problems at all, and can be viewed as opportunities for creative control of the final image. For example: is there really one "proper" white balance, and why should you be tied to whatever the camera (or photographer) decides at the time?
Analogy: if you make a print from a negative, you can fine-tune the image at that point, while going straight to JPEG can be compared to a Polaroid print: one shot, live with the results. I could put in another way: with digital media, you can easily throw away information, but once it's gone, you can not get it back.
Remember, JPEG uses
lossy compression - it throws some information away. I'd reverse that advise: only use JPEG when you can't post-process, or really don't want to.