You guys never got back to me or answered about whether your coin has any official ties to the navajo nation. I really think that if it does not, you should reconsider the name for two reasons:
1) History of malignment from european colonizer society against first nations of Americas, this includes cultural appropriation without credit.
2) If your coin is actually successful in the long run you will eventually be sued for trademark/name infringement by the actual Navajos.
Just my opinion, I wonder why you guys don't reply to this point.
1) The ethnicity of the DEVELOPERS and USERS of NAVAJOCOIN are DIVERSE and IRRELEVANT
I'm happy to hear that you're diverse however, it's hard to see how this is irrelevant.
2) We do not owe anybody an apology for choosing NAVAJO as our coin name.
When you steal the identity of a maligned population and having no actual association with them this is quite wrong. I'm not saying you have done this, yet, if you believe that you can call yourself Navajo without actually being a Navajo (some people are, some people aren't, this is a fact of a life), then I think you're missing a reality check. Again, my opinion.
Imagine I start ENGLISHCOIN Then I go around doing things in this name. You say that the people of England have no interest or claim to my usage of the name of their nation? Now consider switching England (a powerful, first world country) out for a people who have been attacked, subjugated, had treaties broken, etc and still they exist today. Imagine that someone from the culture who maligned these people was now running around using their name for a project they have nothing to do with. I don't know whether this is the case but surely you can see how foolish it is to think you have a right to use the name of a People for a project which has nothing to do with them, and without even consulting.
3) We do not need to be tied down by imaginary rules and regulations
Is ethics and morals imaginary? Do you consider history to be irrelevant?
My point is that if you consult with Navajo nation you might actually find a willing partner (who knows?). You might actually pay them honor (presumably this is your intention in using their name). However, if you steal without consulting then that surely is not honor.
I hope you can think about this further. Perhaps look twice at the United Nations Declaration on the Rights of Indigenous Peoples.
http://www.un.org/esa/socdev/unpfii/documents/DRIPS_en.pdf