Pretending to be human is problematic if the server thinks you are a robot because of User-Agent, IP subnet (dynamic IP cloud systems) and DNS look-up patterns

Pretending to be human is problematic if the server thinks you are a robot because of User-Agent, IP subnet (dynamic IP cloud systems) and DNS look-up patterns (CNN and similar sites). So "behaving like a human" on HN might result in an IP ban because /x is denied in robots.txt. And this gets really funny when you get banned randomly because of dynamic IP addresses in cloud infrastructure.