Let's agree, are we following the law or not? Or we have 2 different wallets, one for legal use the other not.
If you go to another country and spend your cryptocurrencies there, and then other people spend your coins on illegal activities, then you may have problems with AML in your country.
Of course we follow the law to the extent that it makes sense, but we do not follow it to the extent that we turn out to be fools who pay taxes to the extent that someone takes half of what we have made as profit. For example, in my country I would have to file taxes every week when I get paid from my signature campaign because it is considered other income and must be declared upon receipt within a few days. Not only do I not want to spend time on it every week, I also do not want to finance corrupt politicians from the prime minister down to the lowest levels with more money than I already do.
What someone will do with the Bitcoin that I will send them in a transaction is completely irrelevant to me, because if we look at things that way, we all have coins that are tainted in one way or another. This is a completely wrong way of thinking, and the whole thing you emphasize in this thread has nothing to do with what the article is about - if you don't believe me, read what a man who lives in France wrote.