It is not a legit currency because it is not regulated by the government, it is not implemented by them but someone just invented in it and they don't want people to become victimized of this as they were thinking that it was purely a scam.
I think if it does not give bad effect in the people it is legit. It is also considered legit as long as you receive reward right. Personally it is legit but for the government it is not because it was developed by an unknown or an X entity , it is centralized and specially transacted anonymously.