Let me give this a shot...

I love this initiative. Its fantastic that folks can get rewarded for being great! and positive. I wont say: "I applaud you" since i think: "you rock" is the more appropriate phrase to use.
You were very kind to help out with the post i sent you today. Thank you so much and its much appreciated.

I managed 8 without making the comment too nonsensical. :D Thats actually the most positive comment ive ever written and that ill probably ever write. hahaha