That's an awful arrangement, is Iran not making a lot of money that they're trying their best at not just taxing bitcoin mining that they want a part of the mining themselves? If the government has the say in the part of the miners, that's bound to be full of corruption because the miners don't got a say of how they will get their part, that's like fishing on a lake and the park rangers will take your haul and they will decide what you get, is my comparison sort of correct regarding the mining regulation in Iran?
The articles the OP quoted are close to three years old and there were no links to any legal document. We might not know how valid the information is and also the current situation. But most website seems to agree that Iran is using Bitcoin to invade sanctions from the US and other countries. Encouraging miners to sell their coins to the government is not a bad idea if they are not forced to do that and the price is competitive. Miners that want to hold coins should be given the freedom to keep them and the price the state is willing to buy should also be the same as in the international market. Failure to treat these miners fairly will make Iran unfriendly and force miners to move to other nations.
