Or, get the person's information and call the police? Dude if someone is literally doing what you said in your last post, then getting their twitter removed is the last thing you want if there's evidence of their behaviours there.
Take the evidence and contact the local police in their area, twitter isn't the fucking police service and reporting literal child abuse to them won't do fuck all.
Onision's case is different because the evidence against him has already been handed over, people want his twitter gone for their own reasons, whether it's because they genuinely believe he is using his social media to get access to more young fans, or just that his gross ass sex tweets are breaking terms of service to name a few. Mainly I think it would just piss him off, and that would be funny to imagine, but not like we would see his reaction as, you know, his way of posting would be nuked.
Tldr: You can't compare literal child abuse to Onision when it comes to twitter. If you have evidence of someone literally raping minors and abusing their own children then take it to the police. If you don't, you can guarantee everyone here will be calling you more of a waterbrain than Onion.