Weekly poll # 13 : Ads, billboards, street art in street photography

This week's poll looks at ads, billboard and street art in street photography. How do you feel about it, is it ok to use them...
This week's poll looks at ads, billboard and street art in street photography. How do you feel about it, is it ok to use them in juxtapositions ? As for the previous poll "Flash or no Flash in street photography" (215 voters) , I was quite surprised to find out that 87% of voters never use flash in street photography. Is this website Leica biased ? ;)