I agree with Tex (and others) that the "no downclimbing allowed whatsoever" requirement for an "onsight" or "redpoint" is absurd. By extension of that arguement, any downward motion of your body would constitute a failure on the first attempt.
For the record, I think this argument is pretty dumb, but here I am adding to it, so I'm dumb too. A wise man (and founder of this website) once said, "everyone on the internet is stupider for having read this thread".
My answers:
Yes, Yes, Pink
No silly down climbing is allowed, just not standing on the ground. you can down climb to the first move if youwant to just don't step on to the ground