You can easily lose your hard-earned money if you plan to invest on the following
1. Cloud mining
The bitter truth is none of these so called cloud mining are real, they have no proof that they own any mining farm or whatsoever and later they will exit scam on you while you least expected, what 99% of them do is running ponzi schemes, paying B with A invested money or coins
2. Gold backed tokens
They always claim they have reserve but there is nothing to show for it, also I believe it's almost too good to be true when a project promised that their tokens can be exchange for real gold, really? Just like that? Tokens are dirty cheap to build, so why change that for gold easily?
Do you know how many real gold companies that exists in the world today? No single one of them tokenized their company assets, it's just our wishes that they are true but mind you be careful what you wish for
So the bottom line is that it's not that Cloud mining and Gold backed tokens are the problem, but the fact that providers of these services flat out mislead and lie about how they operate and what they offer as a service. These types of scams are present everywhere, from crypto investments of any kind to online shopping. Maybe some of those options would become viable and legitimate in the future, who knows. But for every legitimate idea, there are 10 bullshit ones.