text: Normally stairs are tagged as stairs. If the client you are using is not rendering stairs then that is a problem with the client, not the mapping. Knowing were stairs are, and are not is useful info for many users. 
  
  One of the basic things about OSM is "don't tag for the renderer" (http://wiki.openstreetmap.org/wiki/Tagging_for_the_renderer) The important thing is to map based on reality, not on how we would like the map to look in one client or another.
  
  I'm resolving this note as the issue described is one of rendering not of mapping.