There are countries whose tax system would cost little or nothing to receivers of The MT GOX Btc
Like Belze, Netherlands(usually no tax on personal equity), Singapore, Switzerland (progressive tax system here), Monaco etc.
This is incorrect. In The Netherlands, there's basically a wealth tax. It used to be 1.2% per year, nowadays it's closer to 2% per year. I'm not sure how an uncertain claim like MtGox would have been filed annually, but if you get the money now, for sure you owe taxes retroactively. Since Bitcoin is currently high, and the tax is calculated based on the value on January 1st each year, the total percentage is not that bad.