Seems like some things are not what they used to be.
Over the years the practice of unauthorized writing and drawing in public places has gradually been evolved as a form of artistic expression. Nowadays, graffiti artists are redefining the practice into a street culture that has become one of the most radical art movements of this generation. Some graffiti might express criticism of government while others may express complaints about particular issues.
Graffiti art adheres to the traditional fashion of writing or drawing on public spaces without permission. These people tend to vent their thoughts and emotions when they’re alone behind closed doors. Because they can’t express their emotions in words, they happen to write it down on the door or wall.
Below you have some examples.