I think you're missing the point Paddy. Nobody is saying you have to do all or any of these mods, they're just suggestions. Some will be tacky to some people, but others will be a nice touch that keeps the car looking original while improving comfort or just making driving more enjoyable.
Like fan washer jets. These won't even be visible, but they are a vast improvement and cover the screen better while using less water meaning you won't be topping it up every five minutes in the winter.
I personally will be painting my calipers BLACK because the ones on the car are 4 years old and looking a bit scabby. Surely there's nothing chavvy about this? If I was painting the standard calipers red and sticking Porsche badges on them then fair enough, I'd deserve some stick, but not for wanting to keep the car I love looking smart.
I've done other mods too, but my focus is on keeping the car looking like it came from Audi this way. E.g. Sportback LED rear lights, cruise control retrofit.