To me, the following are some statements from that article that let me know Families sharing info privately with their families was a Goal of Geni at that time.
1] “How about a site that lets your whole family build a family tree together?”
2] No one but invited family members can see it, and as each family becomes invested in the site and its accuracy, it has the potential to become a venue for family announcements, birthday reminders, and baby photos.
3] “We want to be the repository of all your family’s information,” he says.
4] “Many minds are better than one. David has tapped into the power of collective production by encouraging lots of people to collaborate on the creation of family trees.
“Crowds, however, can quickly become mobs,” Sunstein warns, pointing out that Wikipedia is a target for vandals …. The danger of letting a crowd control information is real.
“The problem with a crowd is that you don’t know who’s in it,” Sacks agrees. …. “But a family tree represents a select group of people ….”
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As I state above, I believe the creators of Geni truly believed the two goals of creating a World Tree and Families sharing info privately with their families were not contradictory. That is not the same as they only had one goal.
The existence and importance of the TWO GOALS was confirmed in the Discussion "Are Geni's Goals Compatible ...", with among other things Michelle Kempner of the Geni Staff explicitly stating http://www.geni.com/discussions/98590?msg=725462 : "Of course, we are always looking to introduce features and enhancements that support both goals." Note - BOTH GOALS - not just the one of the World Tree.
Do you truly believe that Families sharing info privately with their families was not one of the original Goals of Geni?