If being a big idiot means never being actioned in the entire 15+ years I've been playing by following those tips, then I'll happily accept that title.
Then play it safe and war someone in your range since you can win ANY war with them.
No, it means to be smart and evaluate the situation. When stupid ghettos give buttons, you don't just press it (unless you're looking for an EZ-PZ farm war). You should instantly be suspicious and think about what you could potentially be getting into. Is it worth it to press the button to teach some ghetto a lesson (and get free rewards) on the off-chance you might be getting played?
No need to answer that question, btw, as I'm sure your current situation has already taught you the answer. In short, THINK before you ACT.