I don´t know if its only for ladder chars but it´s available in single player and on battle.net. maybe in ladder and normal sc.
I guess thats blizzards way to erase all the dupes SoJ´s in teh bnet. <img src="/ubbthreads/images/graemlins/biggrin.gif" alt="" />
I don´t know, i´ve lost all my SoJ´s, because i was 6 month not in bnet. <img src="/ubbthreads/images/graemlins/rolleyes.gif" alt="" />