Sports graffiti

At the end of my row of houses is a boiler-room type block. There is some crude graffiti on the doors of this block, as expertly photographed by my phone:



Now, the key issues of the Abstract are:

(a) Did the graffiti artists spray sports symbols in earnest or were they ironically highlighting the evils of sports branding and the work of 'cool hunters' who work for these large brands? (in the past we have seen campaigns - I think Nike and possibly Sony may have been involved - where graffiti artists have been paid by the companies to spray expert corporate murals)

(b) If the latter, was the misspelling of 'Adaidas' and 'Hi-Teck' done with a mischievous tongue in cheek?

(c) Am I crediting the youth of East London with too much nous / level of social commentary? Are they simply poor-spelling louts with no better message to convey through spray than their favourite trainer designs?