These shots of mosquitos attacking city prints is a great idea and has many people puzzled. See other adbusting techniques from guerrilla artists below.
Implications - Advertising has seen a tumultuous evolution from its early days that has tapped into multiple mediums and tactics. While there are both passive and educated consumers, the educated consumers take it upon themselves to make statements about the "true" nature of advertising. Many artworks and billboards parody popular advertisements to send these messages that pique the interests of many consumers.