This is only part of the story. Its not about easy task or free money common scams.
People think investing in Bitcoin and hodling is free money. Its not, they invest in really high risk venture, that can profit huge but also it can fail.
I believe in Bitcoin a lot, but in some scenarios Bitcoin can fail, so betting it won't and buying is earning money, its not easy or free.
I got your point but you are going far away from the topic. Off topic per se.
Everyone just needs experience in cryptocurrency and in every investment to completely understand how it works. For sure once we all fall or somehow want to invest in something that is really promising that would earn you a big amount of profit in just a small time that in the end just a big scam. Especially having a lot of referral or investment that almost gives you a high percentage of profit, for sure everyone could notice that it is not possible to earn that amount so easily.
Indeed, most of these referral shits tactics are just way of these frauds to have higher number of people that might fall on the scam they created.
Understanding how, what, why, how, and when someone can earn money is essential on their understanding that there is no way they can earn that easy.
Understanding also the side of those scammers will really be a big help to someone.