Graffiti is most often characterized as an act of defiance and defacement. Money can buy space on a billboard to display a safe message honed to perfection by sterile board members. The largeness and imposing nature of giant advertising is often overlooked and forgotten by those desensitised to modern life.
In truth, there are infinite locations for supergraphic text. Any wall is a canvas to spread a provocative statement to reach the masses if you're willing to commit a felony.
Typographically interesting graffiti with a message is a rather fine line to follow. Amateur lettering to communicate a civic message quickly devolves into picket signage. True stylish thoughtful graffiti has potential for so much more.
What is the best font choice for raging against the status quo? Well, unlike with bubble letters and monogram graffiti, protest tagging demands legibility first and foremost.
Aggressive protest graffiti is just as vulgar as the bawdy Latin inscribed on bathhouse walls, although it carries an honesty with it. Pure traditional serifs demand respect even when peppered with randomly sized characters. Another tried and true approach to provocation is to remix lighthearted design trends. The example here is reminiscent of 19th century advertising. Bold black on white text has an implied three-dimensionality that commands attention.