The only thing I think these rankings had any weight in was for OT's consideration of members for the idea factory (currently non-existent) and personal pride. I don't mind seeing the rankings go.
Clarification:
Gaining points in the CDR was a means that a member could gain access to the Idea Factory without being handpicked by the Idea Guru. I felt that a backdoor was a necessary safeguard against the Idea Guru and insisted on a backdoor as a prerequisite to accepting the Idea Guru position*.
*I was able to make an insistence because SG wanted to fold my
unofficial Communal Card Creation group into an
official IdeaFactory subforum.
If the Idea Factory is ever revitalized, then I would urge that a backdoor exist. Until then, the CDR only serves as a personal pride metric.