The discovery was made by a group of Native American activists who were researching the pages and noticed that the administrators were using fake profile pictures and names. They also found that the pages were posting sensationalized and inaccurate information about Native American issues.
The activists believe that the pages are being run by individuals in Kosovo and Vietnam who are trying to profit off of the Native American community by spreading false information and selling merchandise. They are calling for the pages to be shut down and for Facebook to take action against the individuals responsible.
Facebook has since taken down some of the pages, but others remain active. The company has stated that it is investigating the situation and taking steps to address the issue.