ok this is what u win with this bug , u will see how much adena or coin have the man who u want , let's start
Adena : if u are trading items bla bla bla and u want sell something for 200kk , the man tell u have 190kk ext... say him ok come , trade with him , give set in trade , he give adena , when he confirme , open ur inventair while trading (with mouse not with "TAB") than cancel the trade
u will have x2 type of adena , ur adena + adena of ur trader
work's for donator coins too , tryed on c6 l2off/l2j