I say it's a bad idea. I don't know much about the phenomenon and are trusting to your description of it. From your description, the people this doing this are being fundamentally dishonest.

I believe that it is difficult for people who are fundamentally honest to make a profit by serving people who are fundamentally dishonest.

To put it more neutrally, the benefit to a transaction is likely to be apportioned in a very lopsided way unless both parties are following roughly comparable rules. When you are dealing with a lion, he will get the lion's share, which will be close to 100% unless you, too are a lion.