I don't mind the occasional casual post that much, but his outfit is nothing special. Its's very much the basic teenager look, which is exacerbated by the rolled up sleeves in an attempt to look 'edgy'. If it's that warm that you need to roll up your sleeves, you simply take off your jacket. The leather jacket itself is not very nice either and the grey crew neck t-shirt is terrible, I wouldn't dare wearing that outside. The shoes and the trousers are nice though.
Methinks you're overthinking it.