Folks, here is an article written in 1999 from The New York Times regarding on the danger of pegging currencies.
Beware of Fixed Exchange Rates and Currency Pegs
As we had already knew that the SNB declined to peg their currency to Euro. Whether is that a wiser choice, intervention nowadays can proved to be useless in a time where sentiment and directions are not organized. We feel that even with the peg, it may create bigger problem for the swiss economy in future.
Hence, next move to take note of is from Bank of Japan. Be sure they may act to it.