about graffiti

Graffiti is a cool thing.We can find it everywhere : underground train station,factory ,school,street,even just an abandoned wall.Graffiti artist mainly use a wall as their drawing paper.In modern times, paint (particularly spray paint) and markers have become the most commonly used graffiti materials. In most countries, marking or painting property without the property owner's consent is considered defacement , which is a punishable crime.So is it a good thing or bad thing?Sometimes graffiti makes street looks dirty and messy ,sometimes it makes street looks swag and colorful .There are many different types and styles of graffiti and it is a rapidly developing art form whose value is highly contested and reviled by many authorities while also subject to protection, sometimes within the same jurisdiction.I think we should support it ,but also make sure this should not be everywhere.May be an old wall is a good choice ,but public places like park and hospital are really bad ideas.