When I worked in a firm (doing tax law), I loved seeing posts like this online, because the idiots that followed this advice provided a steady stream of clients

When I worked in a firm (doing tax law), I loved seeing posts like this online, because the idiots that followed this advice provided a steady stream of clients needing help with their IRS audits. If someone actually does follow your advice they will be audited, they will owe penalties and back taxes to the IRS. This is also known as a "false tax return", and so the statute of limitations never expires and the IRS has until the end of time to audit the understated returns.