Guys there's absolutely no technical reason for duplicating your coins and developers are profiting much from these ardr and ignis "snapshots"... they know in advance when they'll do them and buy/sell in advance nxt.
These concepts of "child chain" and "parent chain" they are selling do not exist for other cryptos, where they usually just fix the production code of a coin.
Don't fall for the rug peddler's trap.