If ImagineBC never sells any member information, how does it make money?

ImagineBC takes a 10% transaction fee from the full cost of any transaction completed within the community. So, if member A were to sell some good or service to member B for $10, ImagineBC would keep $1.00 from this completed transaction. Member A, as the seller of the good or service would earn $7.00 from the transaction and the remaining $2 would be distributed to the member who referred Member A to the community and to the member who referred Member B to the community.