Gentoo took Bugzilla offline under AI scraper load the same week a 1.5M-page site reported 99% bot traffic.

Gentoo maintainer Michał Górny posted August 8 that Bugzilla had to close under scraper overload, drawing 166 points on HN; a day earlier "A year of fighting scrapers on my 1.5 million-page website," subtitled that 99% of traffic is bots, hit 451 points. Both primary sources returned 403 to automated fetches when this was compiled, which is its own artifact of the same arms race, so specific bandwidth and cost figures are unverified here. The durable point for anyone running a content-heavy product: crawler defense is a line item with real infrastructure cost, and "put it behind Cloudflare" is now a product decision that also blocks legitimate agent traffic.