You have to ask yourself why someone is doing things like this, and that is certainly not because they have extra time that they wants to use somehow. These people do things like this because they can effectively hide using all available methods of hiding their online identity, and because there will always be at least one big fish that will bite on their hook.

This means that if they manage to scam only one person who has at least 1 BTC in their crypto wallet, they have made big money - especially if they live in some third world countries. Unfortunately, there are a lot of people who invest in cryptocurrencies, and at the same time have very little knowledge about them - it is very easy to scam them.