Simple story of a guy' that is a freelancer here sometimes ago who was arrested for something else but caught up in the web of tax invasion, in his own case he have tax invasion but he was able to get a good tax legal team he was billed to back pay all the tax and he was lucky that he was able to afford that at that time.
So my conclusion os why not go ahead and lay tax on your cryptocurrency incomes, this way you can be confident with your cryptocurrency dealing, and be rest assured you get no problem with the tax Master.
Paying that tax in my country is probably a worse option than just hodling.
You can see paying that tax as agreeing with a 33% or even a 60% (50% tax + social tax contribution) conversion fee when you swap euro for dollars. The only difference being that here you are converting digital currency to fiat currency.
Nobody in their right mind would ever do that.
They would just keep the money and spend it on a different occasion, without any conversion. In fact I have once been to Argentina with loads of cash euros because I did not agree with the banks' devastating conversion fees.
I consider not selling my first 0.25 BTC purchase, but that is like agreeing to let 35k euros worth of value (I expect BTC to hit 150k this year) all the way back to 15k at the bottom of the bear market next year.
The tax man is most likely to appear when I convert crypto to fiat in a regular bank. I do not intend to ever do this. I wish for my DeFi tokens to remain DeFi for eternity and keep them far away from government funded digital slavery, also known as the fiat scam. My crypto wallet is the inheritance for my children, intended for 2050