The reason for this is pretty simple: Even if such a coin is constructed under the umbrella of the IMF it still doesn't represent a real valuable asset, because it is subject to political influence. There are also many questions regarding its creation. For example how should the coin be mined - should every country mine its own stash or will there be fixed quotas allocated to each country? How would all countries of the IMF even be able to form a consensus?
An IMF coin will never constitute a real asset like gold or Bitcoin, because it's not functioning as a incorruptible natural resource. Instead an IMF coin would be some kind of "meta-fiat" used as backing for fiat.
ya.ya.yo!
I fully agree with this. When it is subject to the control and influence of a certain big institution, then can be a big problem as it is not offering what a decentralized cryptocurrency can offer. This is a central idea behind the success of Bitcoin and if you pulled it down then you have nothing at the end of the tunnel.
Satisfying thoughts which is true. Problem is if something is owned by someone there is a big possibility that someone could stain it. Even the owner itself could make evil works when he sees a big profit in it. That is why many are trying so hard to make an altcoin. A lot of money is into it unlike bitcoin.