Open mapquest and amenities

Background:

I have been adding some local businesses to OSM using, I hope, appropriate properties. In doing so, I have sometimes added the building outlines as well.

The building outlines and business names are showing up on http://open.mapquest.com/ but the amenity search (bank, atm, restaurant, etc.) does not find the new additions. Frustrating, for example, to have a map showing a building clearly labeled with a bank name but have the bank search function say there are no banks in the view.

I have double checked the properties I have for the nodes and ways (buildings) I've added against previously existing ones near by (found by the search function) and against the usage description at https://wiki.openstreetmap.org/wiki/Key:amenity and don't see what I might be doing wrong.

I realize that mapquest can do what they want when updating their presentation of the OSM data. And volunteers with OSM may not know exactly what mapquest does. But does anyone know for sure that the amenity data is used to update the category search at the same time as the tile data is updated?

If others have not noticed this with their edits, it would indicate I am not following appropriate tagging conventions. Limiting the discussion to banks, my recent changes have the building (way) set with properties: amenity=bank atm=yes building=yes name=First Whatever Bank

I have been setting nodes on the building "way" in appropriate locations with the properties: amenity=atm operator=First Whatever Bank

I found that neither banks nor ATMs were showing up in the search, so in some cases I've gone back and added a node inside the building footprint with the following properties: amenity=bank atm=yes name=First Whatever Bank

That seems to work sometimes but not always for banks. But at all for other amenities. Am I wrong in thinking that having a building marked as a bank (or whatever) should be sufficient? Does it need an independent node inside the way with duplicate information?

In summary, a few questions: 1. Am I adding the properties appropriately? I've looked through lots of posts and read the wiki on this and it seems best practices may have changed over time but I thought I was using the current best practice.

1. Does open mapquest actually use the property data from OSM when setting up their search database?

2. Does open mapquest update their search data at the same time as they update their tiles? Maybe I am not waiting long enough to test things...