Not sure he does. He's not even a registered member of the Lakota.
Look it's not hard, I spent no more than 5 minutes googling and discovered he has a history of native activism going back years. A lot of his work was focused on bringing technology to the reservations. In December be sat down for an interview and initially talked of bringing Bitcoin to the Lakotas but obviously it's morphed into its own coin since then.
Is it fibbing to call it the "official" currency for the tribe, probably, but the guy didn't just come out of nowhere to make this coin, and if he was out to enrich himself, well the boat on the first pump has sailed and the premine was never cashed out. How will he make his scam money now on a dead coin?
Dude, check that link of the agreement that I just posted. I don't know what's going on, but that agreement looks to me like a positive thing. And it's been on their forum since December which is why Payu is probably like, why should I answer questions that I have already answered.
This place is a soap opera, all the info is out there.