the referral program is stupid .
However , it's not a pyramid scheme if the layer of that scheme is less than 2 (there is a rule somewhere in the law ) .
So the referral program is not a pyramid scheme . It's just a social promotion tool .
And it hasn't been get rid off yet .
And the price drop was no way related to whatever pyramid scheme you were talking about .
And the final answer is related to the gold question in stock market : why the share price always rises after I sold / Why it drop after I brought it .
Lol