Web scraping arms race: poison, proxies, and no-man's-land

A thread on residential proxies and the scraper situation surfaced a detail worth noting: there is a growing organized community actively poisoning scraper outputs. One commenter mentioned 'Poison Fountain,' which they claim transmits hundreds of gigabytes of poisoned data, with the quality of the poison improving daily. Separately, commenters noted that residential proxies often run on media boxes where users consented to their terms in the same way they consented to Amazon's, which is to say barely.

The pattern here is an escalating, decentralized conflict between scrapers and anti-scrapers, with no clear legal or technical resolution in sight. Common Crawl was mentioned as a reference point for legitimate large-scale crawling, but the line between that and commercial scraping is blurry.

This matters for anyone building data pipelines on top of web scraping. The reliability of scraped data is degrading deliberately. If your product depends on crawling the open web, you are increasingly operating in an environment where a meaningful fraction of what you retrieve has been intentionally corrupted.