Adbusters have a lot in common with the Situationists of France in the 1968 time frame. The Situationists were Marxists, they supported street demonstrations, they made interesting use of media, and the things that they said may have sounded good (to some) but they absolutely made no logical sense.
Adbusters are rabblerousers. They are hypocrites. They don't really mean anything. They just want attention.