Why?  That is making new coins.  Those who hate a pre-mine should be against instant coins. Just because you have coins on one chain doesn't mean you are entitled to another chain.  You believe in that chain? GREAT!! Sell or trade the old ones for the new. Or change up what you are mining. EDIT: I see the problem since the chains share the same history.... i believe unless there is a consensus it is just another ALT.  As far as I have seen, the forks share a fraction of the value of the original coins.