Russ Allbery:
It sounds like a whole ton of work to get a useful amount of coverage (not to mention bothering upstreams with questionnaires that I suspect many of them would find irritating -- I certainly would with my upstream hat on), and I'm not clear on the benefit. Do you have some reason to believe that this is a common request by users of Debian? If so, could you share with us why you believe that?
I'm discussing about CRS inspired from Google Play.
A case study of implementing CRS is when parents which have Debian system installed on their computer wants to make sure that any programs installed there are appropriate for all family users there. Also we have "Self-Censoring" campaign which encouraging users to filter contents suitable for their age. "Self-Censoring" originates from TV programs, but it can also be applied to computer programs and applications (especially games) as well. Regardless, CRS is good not only to Debian, but also to end-user in longterm, although it is hard to implement and have some maintenance burden.