How much is GreenCoin compared to the market now? I think you have a great deal of incentives with people that are a coupon, it seems it can attract more people to join the project so I think you should promote this project with the money program. Bonus or what you feel it can attract people. What have you planned for the project?
About current situation on market we write in this post
https://bitcointalk.org/index.php?topic=3103301.msg45067502#msg45067502Coupon is really great solution, thanks to OpenTrade dev, hope they can solve recent bug.
We open most information about our plans, right now priority have promotion and security of exchange script.