[Geoff F]

Whether it is correct or not, RAW in capitals has become the conventional way of spelling for the vast majority of photographers worldwide. It tends to distinguish RAW as a file system from something that is just raw, like raw meat for example. Like so much in photography and the internet in general 'Logic has nothing to do with it'. So just use whichever spelling makes most sense to you.

But to return to the original question. While most images will benefit from a little bit of careful Unsharp Mask, a lot of softness is caused by cheaper lenses and poor camera technique.

In so many cases, using a higher shutter speed or preferably a tripod will greatly improve results. I would sooner risk a bit of background noise from a higher ISO than have camera shake problems due to insufficient shutter speed.