Advocates for the use of trigger warnings suggest that they can help people avoid or emotionally prepare for encountering content related to a past trauma. But trigger warnings may not fulfill either of these functions, according to an analysis published in Clinical Psychological Science.
I’m going to guess it is the same reason as to why someone who is super afraid of jump scares, finds them super uncomfortable and get messed up mentally from seeing them. Click and watch a video titled something like “Super Jumpscare’s house of jump scares now with extra scary jump scares” with the video also containing multiple warnings about that it will contain jump scares, and then they complain and try to guilt trip the person how made the video for not including a jump scare time stamp list of every jump scare and a description of what it was in the description. Because they NEED IT to watch the video, as they can’t handle jump scares.