Hey this is a very dumb advice and anyone following this will land in trouble for sure, and the op wont come to bail you out. As you have mentioned the two Asian countries let me inform you, 90% of the transactions happen via exchanges, which send money in the bank of the person. If your advice is to be followed how will they explain when that money came from?. I prefer a good life, my reputation intact and no jail time so not following your advice if needed Ill pay tax and live happily.
Yeah, I am your side, paying tax is a good practice of helping your country, imagine, by giving you a small amount you can contribute progress that possibly happens. Look at the country of U.S.A they were very strict on implementing tax and they are now a fully developed country. So, that is a small amount for us to pay tax and we could live happily and no worries.