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I can assure you adsense has no connection to crawl or rankings.

• RyanZAG 10y ago
  How much connection does it have to making the removal of adsense spam pages from Google's index a priority? I have a feeling it lowers that priority significantly, and if those pages were hurting Google's bottom line, it would be priority #1 for the company to remove them.
• emmelaich 10y ago
  Making money is certainly a motivation for doing it. A non-existant website won't get a search placing.