I understand what you mean (And I hope I'm not intruding the conversation with this comment!) But it's because in the rentry space, most people make rentries to talk about themselves. Of course it might appeal to people who are lgbtq+, mentally ill, uses more labels than the majority of the internet would, etc etc. You only see it in every third-fourth person because of the difference in what online space you're in compared to other people. People with DID are often in more expressive spaces (such as rentry) because the majority of other online spaces are unsafe and judgmental towards them. You seeing them so much is because of the specific spaces you're in on the internet, not on the internet as a whole /nm /info (I'm sorry for the lengthy response! Just wanted to get my opinion out)