Why Reddit, IndieHackers, and Twitter Lexical Editors Block Programmatic Input

TL;DR : Modern rich-text editors (Lexical, Slate, Draft.js with anti-bot guards) reject DOM mutations from outside their internal state machine. This is a feature, not a bug — but it makes legitimate automation pipelines (CDP-driven publish flows, accessibility tools, paste-from-source workflows) unusually painful. Here's what I tried and what actually works. The setup I'm running a 60-day indie iOS dev experiment. Distribution requires posting milestone updates to Reddit r/indiehackers, IndieHa