I am commenting only on tax avoidance (legal optimization), not tax evasion (illegal, don't know much about that). What exactly is untrue in my posts? Happy to

I am commenting only on tax avoidance (legal optimization), not tax evasion (illegal, don't know much about that). What exactly is untrue in my posts? Happy to learn more. My posts are quite generic for the topic, since we're on public internet forum but they come from my knowledge on this topic (which might be obviously invalid).