I am a OSM mapper from Germany who just arrived in NY. I also became a user of Citi Bike.
I have seen that not all Citi Bike stations are registered in OSM. Also Citi Bike will expand soon into upper Manhattan and Queens.
Therefore I thought it might be a good idea to regularly update the Citi Bike data using the official Open Citi Bikes data for JOSN:
However, I have no idea how to use JOSN and I also do not want to mess with the existing NYC data.
So maybe you have an idea who could implement this?