Do u know if u get paid by the messages posted on discussions u start??

Yes, u get paid for it

I think you earn more by the number of people who respond to your discussions and not necessarily your responses to those discussions. I tend to spend my time between responding to posts others have created and responding to those who have responded to those I have created. Best of luck to you!

i think you will not earn to discussions you started but it will helps you to earn more when you reply to other discussions not started by you.

My guess is that you get paid for the discussions you start if people respond to the discussion and keep it going.