Dr. Sarmad contributed a working paper in early February, "Consumer and Consumer Trust - working paper 0.3"
that included this classification of various consumers relative to Whois data.  Believe this is useful to our current discussion.  Thank you Dr. Sarmad!!  Here is the excerpt from that working paper:

Under this definition, consumers can be sub-classified into the following groups
(for purpose of deriving a dissemination scheme for the survey)
 
A consumer is
  1. Individual provider of WHOIS data
    1. Commercial
      1. Latin script domain
      2. non-Latin script domain
      3. with other special needs (disability, social context, etc.)
    2. Non-Commercial
      1. Latin script domain
      2. non-Latin script domain
      3. with other special needs (disability, social context, etc.)
  2. Individual user of WHOIS data
    1. Commercial
      1. Latin script domain
      2. non-Latin script domain
      3. with other special needs (disability, socio-political context, etc.)
    2. Non-Commercial (e.g. to check charity company for Haiti earthquake)
      1. Latin script domain
      2. non-Latin script domain
      3. with other special needs (disability, socio-political context, etc.)
  3. Organizational provider of WHOIS data
    1. Commercial
      1. Latin script domain
      2. non-Latin script domain
      3. with other special needs (disability, socio-political context, etc.)
    2. Non-Commercial (e.g. civil society)
      1. Latin script domain
      2. non-Latin script domain
      3. with other special needs (disability, socio-political context, etc.)
  4. Organizational user of WHOIS data
    1. Commercial
      1. Latin script domain
      2. non-Latin script domain
      3. with other special needs (disability, social context, etc.)
    2. Non-Commercial
      1. Latin script domain
      2. non-Latin script domain
      3. with other special needs (disability, social context, etc.)
  5. Registrar
    1. Latin
    2. non-Latin
  6. Registry
    1. Latin
    2. non-Latin
  7. Government
    1. Law-enforcement role (in the scope of the other sub-group)
    2. Non-law-enforcement role