To write tags and do pieces on public property has been done since the dawn of man. Some of you like it, some of you don´t. I say, as long as you have a reason for what you do and understand your aesthetic responsibility, go for it, go out, do graffiti, do street art, make people have an opinion!
This installation is (hopefully still) on display in Suvilahti, Helsinki, at the skate park. In Suvilahti you can find the largest legal graffiti walls in Finland. This installation may also be the smallest piece made by the smallest people ever there, or maybe anywhere.