I had a friend who streamed H1Z1 on Twitch, but at some point she got contacted by people who demanded nudes. She refused and then became a regular victim of DDoS attacks. Even when she wasn't streaming. This was about a little over a year ago. What I'm trying to say is cyber bullying doesn't really work out the same every time.
I can also imagine being bullied in an environment that you are psychologically dependent on (i.e. when you have social media addiction) can be harmful, especially if you or the people around you don't recognize your situation.
It definitely does exist, but it doesn't have to be the only problem that leads to suicide.
Those who cyber bully you are random people, so basically. You're not supposed to give a single fuck. Because these nerdy addicted pedophiles Don't know anything about your personality. Think about it, would enjoy the internet and ignore everyone that argues with you? or would you let them get you.
Let me put this in a more aggressive way. If you don't care about those random people, you're good on your own. If you reply to them, you're nothing but a weak and worthless kid who can't handle anything.
I may sound harsh but It's the truth. Self control is what makes you perfect