I'm a frequent contributor to OSM, along with being passionate about individual privacy. Adding Flock cameras to the map has become a new hyperfixation for me. The best part is that when tagged correctly, they appear on deflock.me along with OSM. It's a simple way to help your community know when they're around these dystopian ALPR cameras. Deflock also has an app, although I cannot attest for it - I believe that it dumps the data into OSM too, so it may be better suited for those without OSM experience.