Do you know how much 5000 IOTA is? That is approximately $1,400 dollars. So tell us why IOTA will give that amount to anybody that can easily sign up? A thousand sign ups will be worth over a million dollars already. That's ridiculous.
No, it is not. 1,000,000 iota (1 miota) is currently $0,28
About math (and about IOTA prices, iota in ICO, IOTA, MIOTA, the truth about the ROI, ...)
https://bitcointalk.org/index.php?topic=5190165