i've never seen any fake in person, and in ebay most of DH jeans are genuine, so i guess there are not a lot, it's not a brand that interests fake manufacturer, you can't see "dior" written anywhere in the jeans, not like diesel or dolce gabbana, and when someone buys fake it's for others to see that they are wearing brands (even though most of the times it looks ridiculous)
and for the DH made in morroco, you speaking about the red selvedge? is there any other model made there?