All of those scammy cloud mining sites are all SCAM! Stop wasting your money to a crappy passive income, you must do it on your own with hard work.
It must be obvious by now that people simply don't care. It wasn't rewarding to cloud mine last year, and has become far less rewarding today, but the number of people investing in cloud mining keeps increasing.
Cloud mining platforms manage to attract people based on how they market themselves, and their marketing skills are quite impressive. If you can still attract capital from people in today's world, you are doing your job well.
These platforms might even be paying YouTubers to shill for them. It happens a lot when it comes to ICOs and other schemes, so why should it not happen with cloud mining? YouTubers don't care as long as they get paid.
All sorts of things would really be done when it comes to marketing because this is the way that they can able to pull in investors. You are actually right that most of us do have experience do know on these schemes to fail out most of the time but still there are people who do keeps coming or investing in-spite of its expected outcome or result and now they do ask about money-back? Too late and wont really happen because once you get inside theres no way out but to lose up investment and make this as a lesson learn.