Has the expression of an opinion or wish that a community or neighborhood articulates any effect? It certainly does like a nice example showed that just recently happened in the Bötzow quarter here in Berlin. An artist group turned one piece of a pole construction dividing walkway and street into a horse jumping barrier. The whole thing looked unusual but very nice as well. Not much later vandalism took its course and one part of the wooden barrier was broken down.

Broken down "horse jump barrier" at Hufelandstraße

The neighborhood, obviously already pretty much used to the nice view of the piece of art before did not want to accept this. A note appeared on the barrier asking the artists nicely to please repair this art piece and a lot of people signed it.

Note on broken down barrier

So, the artists came back, fixed the barrier and even improved the piece of art by spraying some horsefeet prints onto the ground.

Fixed up "horse jump barrier" at Hufelandstraße