Author of the original Appendix article here (the one about Darwin's kids) - I think it got on HN today because I linked to while discussing Onfim here: https://resobscura.substack.com/p/onfims-world-medieval-chil...
The reason for waiting is to give the hivemind cache time to clear. Normally we'd re-up the existing post, but we don't want two overly similar threads on the frontpage within a short time period.