I couldn't understand the project completely. There are weird devices which are scanning people's eyes to get a map of Iris (since it is also like the fingerprint and unique to people) and the scanner is being rewarded? So what will happen to the scanned person? Won't they be rewarded? It may seem hard to handle but there might be a solution to that.
Per what I learned online, basically World coin aims to scam as many human Iris possible and collect that data to differentiate between AI and Humans in the future. I know it sounds weird but maybe they believe in future AI and humans won't be differentiated so needs some tech.
So my friend went in the mall or somewhere where they have these big devices where they scam your eyes and send you a few coins to your wallet. You can only claim it once per person/iris. My friend got all his friends/family scanned and paid them directly

. Not entirely sure and not a fan of what they are doing. Because the data can be leaked/misused in the future and not worth selling your identity for a few dollars. The price of the token isn't doing great either.