Hey,

The result of the poll suggest that the community quite clearly discourages adding address tags on rental stations. (Although I erroneously asked about bike rental stations, I assume that the same goes for car rental stations)

You could start a thread in the forum and find out whether an address scheme like informal:addr:street=* + informal:addr:housenumber=* would get more support. (I don't currently have the capacity to do this, sorry)