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Isn't that exactly what PageRank was designed to handle? None of these spammer sites should have any actual positive reputation.

• rhizome 7y ago
  I wouldn't be surprised if there's a network of non-phone sites linking to them that juice their PR. Like I surmised: it's a broad-based strategy.
  • trillic 7y ago
    Google has cycle detection in PageRank specifically for this reason? They know which regions of the graph are good ones.