It happens even to the best of writers. The roleplaying community is a cesspool of idpol, cliques, and cancel culture. People are afraid to put murders into their own killing games because it might offend people, and canon-typical content is seen as being 'too much' for a public game. People get cancelled for having lil' ultimates, derided for drawing fan sprites, and the entire community is so centralized and dare I say commodified that it's created this strange atmosphere where killing games are seen as products to be consumed, but are not allowed the identity of professional teams or projects.I hate both of these things, because what you get isn't a story. It's a PSA. It's somebody preaching to you about why they're right and should be validated. People enjoy reading stories, engaging with memorable characters, and challenging themselves and their self-conceived notions of the world. Hell, how about the setting? Nagito/Izuru's existence is proof positive that Hope's Peak Academy is literally able to quantify and allocate luck. That alone could be a fantastic idea for a story! Imagine that playing out with different state actors running up against the possibility of slamming into a cosmic/conceptual debt collector as they jockey for resources/power. Or the idea of setting things during the Tragedy outside of Japan, so nobody knows what the hell is happening in the midst of a memetic zombie plague. Junko opening a taco stand, you get where I'm coming from, there's so much potential and so much to be interested in.
It makes me sad because they've focused instead on what makes them uncomfortable and what they hate. It always comes back to them on the page, and because their lives are so focused on what's miserable and unacceptable without designs beyond telling their audience that they're miserable and things are unacceptable that the end result almost has to be unappealing. They can't look beyond themselves, and thus can't look at characters as doing anything more than what their creators secretly want to do. They can only write themselves, and perhaps can't imagine anybody doing anything more. It's funny and sad to me that they lean on diversity so heavily, when the end result is still so lifeless, unappealing, and heterogeneously bad.
In case none of you are aware, mkgrp (mutual killing game roleplays) are largely advertised through a discord server called the Dangan Nexus. It's basically Craigslist for roleplays, with sections dedicated to each month's games and a short ad for each one alongside any requirements and who's running it. These killing games are largely centered around original plots made by the admin/mods, and geared towards original character casts. Players can sign up for pings to be alerted whenever deadlines for games get close. Deadlines, I hear you ask?
Yes, deadlines. DRRP runs almost exclusively on competitive applications. As one might imagine, this causes a shitload of nepotism and favoritism that nobody can ever call out because the people who do it the most are the most popular people who can get you shadow banned from any popular roleplay just because they don't like you. Games can get anywhere from a handful of application submissions to literally hundreds for the most popular games. This also means that games pride themselves on presentation, leaving the most popular and well-known games to be filled with professional-grade art, animated cut scenes, and fancy graphics. This has the exact effect on small text-based games that you're imagining.
The entire community is an absolute shitshow, but it can be hard to penetrate for someone on the outside considering how much of it is clout based. But it has some messy drama in it. There was a game that got blown apart by the community because it was discovered they had a minors only NSFW channel, and another that got people so mad that it forced a rule change in the discord for advertisements because the entire game was populated by lil' ultimates (elementary school-age kids). Thankfully the mods of the Nexus don't seem to put up with bullshit or personal vendettas, but that hasn't stopped people from trying.
There's also a very sizeable twitter community regarding mkgrp, and a smaller tumblr side as well.