Why someone would create such chain? If it's for local spending, or for some entities with established relationship then why they would use it in a first place, why just don't use trusted third party (in the case if you trying to keep the blockchain more clean), no hashing, no mining, small fees, very simple.
to avoid going to Fiat
to have a very very very fast chain
to not have to dip into main BTC funds outside of a controlled environment.