Absolutely. That's my natural position and I've been typing hours per day for 20 years with no signs of stress injuries at all.

A good way to describe it is that the home keys are not asdf jkl; but rather more like qwdc mkp[ . I don't have any real fixed home position though, my wrists always "float" over the keyboard. Particularly the right wrist spends more time near the brackets and slashes for programming.

Yeah, this is my default posture. Something tells me a lot of this RSI nonsense is due to bad technique.

I code, game on a standard keyboard, no issues - don't get me wrong, I've had RSI before, but it was down to technique, posture.