This letter and the photos have been sent to the head of the Department of Public Work and several of his deputies down at City Hall. I'll let you know when I heard back from them.
Dear Mohammed Nuru,
This is a request to have your department quickly remove the filthy and faded rainbow flags currently on display attached to City utility and light poles around my District 8 neighborhood. Some say these banners were installed when Sup. Bevan Dufty represented the area at City Hall, but I can't pin the install date down.
Regardless, as you can see from these photos the rainbow colors are heavily washed out, some banners are torn and others caked with soot. And it's not just one or two but at least a dozen, perhaps more that I missed capturing on my camera, and they are clustered around a few cross-streets.
These four banners fly on 17th Street between Castro and Sanchez Streets, and they greet visitors arriving to the world-famous gay-boy-hood via the iconic and historic F car Muni line.