Still would love to be able to query on this, I tried this:
http://forums.comcast.com/restapi/vc/ranks/list/users/count
And got:
<response status="error">
<error code="306">
<message>
A required feature is not configured: user-node-rank.
</message>
</error>
</response>
Seems so close, yet so far... Anyone have any thoughts to get this user count by rank or even if I have to specify each rank to get a count?