[Blitz]

I don't see much value in it. I have a hard time calling them "artists", in my eyes they're vandals who have no respect for others. I know cities have experimented with legal walls but in many cases this has resulted in a further spread of graffiti into the surrounding neighbourhood. Cities need to invest more time in cleaning it up as soon as it appears - if the vandal knows it won't last long they'll eventually give up and move on. I remember when I was first in Montreal I was shocked at how terrible the city looked because it was everywhere.