User blog comment:J.R. Imp/Maintenance (5-23/24-2012)/@comment-4997351-20120524044910/@comment-1140008-20120528212751

Grog was a Ship Material on Test when Ship Customization was released on there. They were required for Rank 5 and 6 Hulls, but then the Rank 5 and 6 Hulls were removed and later added back without the Grog requirement

No player on Test has ever looted Grog.