Yeah, I explained in the other posts specifically about how it's just all ideas. Fret not, and also, I don't even know if it could be implemented.
I'm not sure about the issues with the guy who didn't get credited. I mustn't have been around at the time. However, I doubt it would happen at this point of time. As you said, everyone's becoming credited again, whether it just be an idea pitched (i.e. stats) or an actual look/item.
Yeah, I'm not sure about the Diadem Hats and all, but you don't make a whole new item for fashion/hair recolours. It'd just be copying the OG colours then replacing the palettes that correspond to these items. So there's no real way to make hair/fashion look funky or anything along those lines; the only thing that could mess up is the colouring, but then we can just replace the palettes after finding the issues.