Thank you for your answer, swordfischer.
There is indeed a list of members on that page, but they all have either: Cards from my wishlist not in the correct language (undetermined language is NOT the correct language to me.. ), or the following "Trading opportunities" comments:
"Member's name here" does not sell any cards from your wishlist. Check out these other interesting cards he has for sale.
or
You need no cards from "Member's name here" 's tradelist and they need no cards from yours.
There is also no difference in the opportunities, wether it is in the "Relaxed matching" or the "Strict matching" filter, thay show the same list..
Besides that it is allways a "Found 229 results" status in the trading opportunities page (ship worldwide option), with none real actually :-( .
Friendly yours,
Foilander.