If you want a German Shepherd, you should have gotten a German Shepherd. Please leave his ears alone as they will never stand. You cannot turn a mix into a purebred. He is a gorgeous dog and he should be loved for who he is and for his looks.
I don't understand why taping the ears equates to not loving the mixed dog/wanting a purebred? This seems to come up any time there is a taping thread, sometimes even with purebreds (love him how he is, etc. even though in PBs it is a legitimate fault and the owner thusly expected erect ears) I also don't think he's trying to turn him into a purebred, he's trying to accentuate an aspect of his mixed heritage.
The OP could love his dog bunches regardless of floppy or erect ears and just have a preference for the pricked look if it's attainable. I think the pup is gorgeous as is and like his floppies. He's not my dog though. While I agree it is unlikely his ears will stand with rottie in him if that's the mix, the one ear does look a bit stiff so who knows?
I understand people's issues with ear taping/cropping/cosmetic changes to animals. I agree and disagree with different parts of it and support everyone's right to have their own view on the matter. But it bothers me when it seems almost implied a person doesn't love their dog just becuase they want to fiddle with their ears. Heck, I don't like my nose some days of the week! Some people get nose jobs, I don't think it means they don't love themselves.
I mean no disrespect at all, but for me, this comment reads like 'if you wanted a REAL GSD you should have adopted one instead of a mutt, shame. Now you want to prop the ears and try to get a REAL GSD? Too bad.' I sincerely don't mean this as a personal attack. On the Internet our words so often take on their own meaning to whoever reads them. I just feel for me, saying if you wanted a GSD you should have gotten one is a tad harsh. He brought a wonderful mixed pup into his home, knows he has GSD in him and GSD have erect ears, he wants to try and see if they'll prop up. Seems very innocent to me.