It's nice, and a lot of work, to gather this from the city. Many thanks!

But because it's just a stream, the only interaction is to browse, which can be mind-numbing.

It would be interesting to sort by image vector, to find tags from the same person, to locate them on a map, to mark and share favorites, etc.

Graffiti raises a host of social issues; features that concretize that could be helpful.