This line of thought comes up in every time this subject comes up. I'm genuinely curious where you would draw the line: 0. is it ok to fly for compensation if

This line of thought comes up in every time this subject comes up. I'm genuinely curious where you would draw the line: 0. is it ok to fly for compensation if you have a commercial pilot license? (The FAA draws the line here.) 1. is it ok to fly for compensation if you have a private pilot license? 2. is it ok to fly for compensation if you have a recreational pilot license? 3. is it ok to fly for compensation if you have a light sport pilot license? 4. is it ok to fly for compensation if you have a student pilot certificate? 5. is it ok to fly for compensation if you don't have a pilot license?