People really need to understand just because something was done by a minor shouldn't exclude them from criticism. Not harsh, scathing criticism, no, just general criticism, even ones that have no substance and are mere "yeah this is really on-the-mill man what is this" ones. But I get it, they're a minor and probably aren't used to negative comments—which for the average teen, yeah, I can see why he was so upset. All I can say to him is to ignore the ones lacking substance and focus on the ones that have actual criticisms of the video. Critiquing a video made by a minor's different from harassing that minor.
Is he obligated to care for them generally? No. But it's highly recommended. Though, who am I kidding? He got his minor card, he got his orbiters, he can ignore all the (genuine) criticisms and continue doing what he wants. More power to him or whatever. He got that merch line with Makeship. He's just another bloke on the list of "powerpoint slideshow horror" creators who got big. Just hope he doesn't let everything get to him and cause him to do erratic things like we've already seen other Analog Horror creators do.