Our first exposure to Banksy was when we were hitting puberty. We probably thought they were subtle back then.
It's got just the right mix of highbrow disdain, unironic self righteousness and naughty language to titillate the average guardian reader though.
(Also, if you're familiar with Charlie Brooker's output, he's not really a 'highbrow' type. He started out in games journalism.)
He got more famous and acclaimed since black mirror.
At the same time it's painfully obvious it riled him up being a more obscure and less famous equivalent of banksy.
- Creator of Black Mirror, 5 years before series premiere