Data in lists of members of professional groups must be limited to what each list's purpose strictly needs; adding more requires the member's consent, revocable at any time; members may have the list keeper state, free of charge, that their data may not be used for advertising or commercial prospecting and may demand free removal of all their data from the promotional census.
The graph holds this control, the 0 it maps to, and the evidence behind each claim, over MCP and REST.