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had? What happened to it?

• Aissen 5y ago
  Google used it to detect the SEO spammers, improve the algorithm for a while, and now it seems that spammers have found a way around that again because in the mean time maintaining it wasn't worth it inside Google.
• oefrha 5y ago
  It broke, then eventually got delisted. Presumably the person working on it left and no one cares to work on something that clearly won’t lead to promotions? There’s a “Personal Blocklist (not by Google)” now.