What do you do if you don’t like your neighbor’s creativity?

I thought this was an interesting scene from Columbia Heights/Mt. Pleasant. You can see that the gutter system has been reconfigured and on one of the gutters is written, “creativity takes courage”:

But what if you think that your neighbor’s creativity is actually a bit of an eyesore for the block?

So a couple of questions – what do you think about this case in particular? Do you like how the gutter system is set up? Do you think it looks nice? Do you think it’s creative?

And also in this case or any other case where you don’t like your neighbor’s art – what do you do? At what point do you just suck it up and say this is life, we have a right to do whatever we want on our own private property?  Or when do you approach your neighbor and have a discussion?