You totally nailed the whole it worked on my machine thing with web scraping - tbh IP reputation is like the game-changer here, and you called it out perfectly. The residential vs datacenter IP distinction is literaly what trips up most anti-bot systems, so props for breaking that down. And that ipinfo.io demo you threw in is chef's kiss - it's the perfect way to show people exactly what's going on without all the theory-speak. Real quick tho, once you've got the IP layer sorted, don't sleep on TLS/JA3 fingerprinting because a lot of websites will still ghost you on that front, and that's where tools like curl_cffi come in clutch as your backup plan. But your 4 factor breakdown and the production pattern setup is dead accurate, no notes :)