Let's say that I earned a shit ton (million range) from spamming and just pure blackhat shit. Then say I live in a small country where I will be #1 on the yearly tax top statistics which is published in the newspaper. As my country is small this means people will start talking about my company and being interested in why it went from shit earnings to million earnings so quickly. People will start to investigate and shortly after the government might want me to show exact proofs of how I earned my money. Is that how it goes? I'm in EU.