Apparently BB doesn't feel that Star Coins should be awarded in place of XP AFTER you reach 50.
Just a small history, they awarded star coins to all XP earned after reaching 50 at the time the star coins were first introduced. They did this as a 'script' one time job. BUT currently, there is no star coins conversion for Quest XP.
I reported this as a bug, and it's pending developers attention.
Please go here and share your opinion and let them know that Star Coins need to be given for Quest XP.
(this includes the science skill for explorers, Sophisticated Pillager)
PLEASE go there and make some noise and give them your feedback.
http://forum.tsotesting.com/threads/...ghlight=bandit
I think BB is just lazy and really don't fix anything unless people actually complain about it.