In many places where these signs are banned, old grandfathered-in examples have become beloved heritage landmarks.

The musée Carnavallet in Paris has a fascinating exhibit on the city's history based entirely on old business advertising signs.

An example here in Vancouver: https://vancouversun.com/news/whats-the-future-bow-mac-sign-...)

I detest a lot of modern forms of advertising as much as the next guy, but at the same time I think we'd be choking off a lot of interesting and enriching human expression by trying to remove it entirely.