as PSA, nuances in prompting here matter a lot, but i have also A/B tested with different accounts on same tier in incognito mode via claude.ai, and it seems clear that some accounts are ineligible for this behavior (likely due to some backend routing detail.)
so, if trying to reproduce on claude.ai, worth refining craft first, but it is a legitimate possibility that a given account cannot exhibit the phenomenon.
the inferential gap between this writer/reader for this shortform and descendants is becoming huuuuge due to etymological issues. strongly recommend tabooing “cult”—doing so will increase the effort required from participants (due to loss of very relevant semantic infrastructure), but i suspect that price is table-stakes for content to avoid distortion between sender/receiver.