By all means hold to your ignorance of the subtle differences if you must.
<you can not short a Nasdaq issue while lit is in freefall>
Never said you could, only that you do not need an uptick to short nasdaq stocks. You need an upbid, then you can hit the bid with short sales all you like. I know, I know, it's too subtle for you to comprehend.
You may also want to read www.sec.gov/rules/final/34-50103.pdf as this covers the new rule (not yet in effect).