If you Google "graffiti" for images, you'll mostly get a weird dichotomy of "graffiti art" and "methods for removing graffiti". We don't seem entirely in agreement on this subject, folks.
Some like the color and splash added to often bleak urban landscapes by colored spray paints artistically applied. Others feel it is the beginning of the end for their neighborhood. And all in all, both may be right. Though I do think locking up the spray paints at HomeBase and Lowe's etc., as we have around here, so even the lovely young woman wanting to remake a rescued table from the rubbish can't buy them, is overkill.
Yet there still can be much wisdom in unofficial messages. I love the creativity of the Moss Graffiti on this old wall - there are even instructions for growing your own moss message if you wish to.
And I love the chalked graffiti above: "Come run the hidden pine trails of the forest; Come taste the sweet berries of the earth; Come roll in riches all around you; And for once never wonder what they're worth!"
But most of all I love the graffiti on the wall above the bar in a British army mess in Iraq - a commentary on how we got them all into this mess:
Yee-Haw is not a foreign policy
Can I hear an Amen?