Hmmm, I knew it was only a matter of time before someone big started marketing foreign traffic specifically for growing trades.
Just my humble opinion, but I see trading as a community. If you feed junk to your trades then you're not really doing the community right.
I reward my trades by skimming less aggressively for 'en' surfers - surfers get more clicks to galleries, the trade's prod goes up, so they get more back...