Have you ever been harassed or doxed on social media? 2: How many people do you know who have been harassed or doxed on social media?3: What is the most dangerous social media app?

I’m stuck on a Writing question and need an explanation. 1: Have you ever been harassed or doxed on social media? 2: How many people do you know who have been harassed or doxed on social media?3: What is the most dangerous social media app?4: What is the most helpful (business/career oriented) social media app?5: Briefly describe how you’ll make effective use of social media while protecting yourself and your career.