Board Thread:General Discussion/@comment-174.60.244.74-20130412192857/@comment-188432-20130412202308

No need for an S:C. The CC-BY-SA 3.0 license was in conflict with the Traveller copyright, so the lawful publishers of Traveller materiel demanded it removed entirely from Wikia. (Basically, someone else was actively enjoying the benefits of the ability to use CC-BY-SA 3.0 to make for-profit materials from Wikia content.)

Its content was moved to travellerwiki.org, and Wikia's usual right to retain the "original" was nullified. So it just "disappeared".

Read more at http://travellerwiki.org/Forum:Welcome_to_the_new_Traveller_Wiki