For example, the RIPTA GTFS contains route_ref, but I see on https://wiki.openstreetmap.org/wiki/Buses that it prefers the tag "ref", but https://wiki.openstreetmap.org/wiki/Key:ref shows ref has multiple options. I've tried asking for help on #osm but I guess this works too. I just don't want to post a lot of bus stops and get rejected. Thanks!