I consider that there is a fundamental distinction between tags and visual art, and I frequently see a battle for wall space between taggers and visual artists in Fitzroy. To me, taggers are the illiterati. They have barely mastered literacy and are so proud that they know how to write their own names that that they do it over and over. They give nothing to their audience. There is no surplus meaning or purpose to their actions than to proclaim ‘I woz ere’.
This recent work by the Urban Cake Lady on Fitzroy St was quickly defaced by a tagger. Visual artists give images to their audience, who can view and interpret them. A surplus of meaning exists or is made possible, and the work has far more variety and complexity than an endlessly repeated name. I doubt most illiterati are capable of appreciating this.