Show HN AI Crawler Audit: 156 Launches, One Pasted robots.txt

Viewfy probed the homepages of 156 Show HN launches in August 2026 with seven AI retrieval user-agents. 23 sites (14.7%) disallow Anthropic's ClaudeBot while leaving OpenAI's OAI-SearchBot allowed, and zero do the reverse, because 23 of the 24 robots.txt blocks in the cohort are Cloudflare's managed file, not the founder's.