I have and will do more....but the more articles the better. This is an important project in my view so getting the word out is crucial. This is a co-operative effort, not competitive.
Just be sure to use your referral code in your article not mine.
The referral code allows you to be in the bonus pool for each person you refer. It gives you extra coins on each distribution for the period of one year after the person signs up...and this is only on direct referrals....no mlm 5 levels deep stuff.