I feel like the internet has led to an explosion of these such groups because it abstracts the "ideas" away from the "people". I suspect if most people were in a room or spent an extended amount of time around any of these self-professed, hyper-online rationalists, they would immediately disregard any theories they were able to cook up, no matter how clever or persuasively-argued they might be in their written down form.
[0]: https://www.newyorker.com/magazine/2025/06/09/curtis-yarvin-...