1685 would be a reliable date for the end of the Buccaneer era of the Golden Age of Piracy. For the English pirates in the Pacific, they were fighting the last real buccaneer fight of their careers. However, buccaneering was, traditionally, a French occupation. The English were part timers. After 1685 most of them that chose to continue the trade would do so full time. Only now they wouldn't be privateers or Buccaneers, but outright pirates.