Look guys, I get that you want to be in your guys corner and all but let's not be delusional. Youtube videos do not magically make someone sing off key. If anything, crappy video quality would compress the audio so that the notes Scott is singing and the notes that band are playing are CLOSER, not farther apart.
Hell, the best Scott's ever sounded since the reunion to me was in shitty-ass camera phone videos from 2009.
This isn't a matter of audio fidelity. On that performance of Wicked Garden Scott was more off key than any of us have heard him before. And yeah, it's really fucking sad to see.