I think street art like this looks really cool but get frowned upon because it is 'graffiti'. I understand how some people might not like it on their property or if it is rude/making a political statement but art like this is amazing. Graffiti tags and pictures of dicks everywhere though do get annoying.
Okay, what really bothers me is the people saying "How can graffiti be frowned upon?!?!?!?!" on pictures like this, and similarly impressive artwork. Artwork like that usually takes ages, so you would need permission to paint there. The only type of graffiti that people generally ACTUALLY have a problem with are people spray-painting their names or a dick on a bathroom wall or something stupid like that. Nobody's frowning upon this kind of thing, and it's not actually vandalism.
People should start hiring graffiti artists and letting them paint on artificial walls. That would actually be art compared to the "modern art" they have right now.
What has art and humanity come to?