echoing some other people, this is a scam to exploit you. if youre extremely lucky, youll earn something, but doing a good job is certainly not enough, you still need luck. OF just needs a small percentage of people making money serving as bait to attract a huge bunch of other people to exploit, regardless of merit, and thats the part youll play most likely.
theyre not good at math. But its still impressive that they can mostly get addition right at all, considering theyre a glorified predictive keyboard. And thats what this post is getting at.