If I walk through a city center and I'm bombarded with unavoidable billboards, it's just not good for my brain. I don't want it, it's pollution, poison. I would love a real-life ad blocker for public transport, for example.
So what happens next? When do cities, local governments (London boroughs, say) start to care? Do they ever start to care that commutes, everyday lives of citizens are being destroyed (is there a clear enough causal link)?
Or do we have to wait until people like me start moving out of the city because they don't want to see bollocks flashing lights everywhere, they don't want to walk through a Minority Report like scene of pervasive unavoidable attention grabbers?