I'll bite..
Even if Quicksilver can make Superman punch himself, how is that going to change anything in this match-up, at all?
Lemme be more clear: if fighting for Seventy Thousand Years against General Zod pretty much did not leave a scratch on Superman, how the hell is Superman's redirected punches supposed to damage him? Even if Superman punched himself as hard as he could, it would still not be as powerful as most of the shit General Zod was throwing at him.
And yet, Superman was almost completely unscathed.
So how are Superman's own punches supposed to harm him? The answer is simple: they won't.
You guys...if I have posted something very early in a thread, contradicting it is very stupid: you'll always be wrong. 🙂