I noticed fiefs that have 40000 S/D. So they did't saw trader from months. They should become pauper states (no trade, no exchange). And in current strategus land lord will pick up one day those 40000 trade goods and sell them to make profits. In fact there is waste of time to trade with less number of tg for him. It leads to enormous wealth of lords and poornes of others.
Now landlords - noble one are making trades (with is complettely inacurate to medieval era). Also it leads to situation where less ppl play in strategus (since they cant have any fiefs , (none would conquer one from apostates, greys or coalitions). In strategus can play now 100 ppl and still can use all S/D. And to manage empire you need 5 ppl).
Some lords considering trading in their fiefs as stealing !!! they S/D. Completly forgeting it means "supply and demand", trader provide needed services to fief. Lords suppose to get benefits by tax not by doing trade themselves. More ppl get rich more ppl will play. etc etc.
How to change it ?
Simply every fief can gather 2x more S/D than own prosperity, and limit number of trade goods that can be carried (some proportion like 1 troop /2 tg). This way traders would be very needed, otherwise landlords would lost their money. Or they would need to do loot more job and ppl to manage fiefs.
What would you think about that ?