I have a simple proposal: increase the precision of offers on the money market, adding a 4th decimal digit for offers there.
Currently, the precision of CC sell offers is too low
0,001 = 1000 CC per Gold
0,002 = 500 CC per Gold
0,003 = 333 CC per Gold
0,004 = 250 CC per Gold
0,005 = 200 CC per Gold
0,006 = 167 CC per Gold
0,008 = 125 CC per Gold
0,009 = 111 CC per Gold
0,010 = 100 CC per Gold
See the problem? You can't offer much CC for sale on a rational manner (e.g., not to "game the system" and try to earn over it).
The solution is simple: add one extra precision digit to CC offers, problem is mostly solved.