Maybe these people were probably offered a different job at first, but when they got to the actual work, it turned out to be a scam. They probably can’t leave anymore because there’s a big syndicate behind it. The pattern seems familiar, kind of like the scenario with POGO here in the Philippines.
It is crazy to think about it, that there are people who are forced to work for a syndicate and scam people online through cryptocurrencies, i don't know if these people knew about this job from the beginning or if they were coaxed into it with no way out for them. I think people who are forced into labor like this are usually desperate people, and it is easy for the bad guys to take advantage of desperation. I hope the law takes its full course on criminals like these and people should learn about these scam tricks and avoid falling for it.
It's certainly an edge if you are knowledgeable and updated with the different scheme scenarios that are currently happening so that you can avoid from falling on it no matter how big amount the offer is. Even if we say desperate people are less likey to think and act ethically, but if they have been aware of these possible scenarios, definitely they will always be cautious not to fall victims for this kind of scheme. Knowledge will lead them doing the right thing.