First of all, I feel the beginning of the Title of this thread should be The Risks... and not The Ricks..., check that and edit the post.
My first impression was when I read the title: the new Rick and Morty season is out and they talk about cryptocurrency trading.
Damn, what disappointment!
As for the risks themselves, probably I've spent way too much time in crypto but to me is like saying be careful and don't cross the street on a red light with oncoming traffic, I would be genuinely surprised if there are even 1% of traders who aren't aware of these, it takes just a few hours researching it to find out., you can do that while waiting for your wire deposit.
If it's about people who only buy and hope it will go x100, yeah, this could be an eye-opener.
Oh, one thing...
1) They are volatile: unexpected changes in market sentiment can lead to sharp and sudden moves in price. It is not uncommon for the value of cryptocurrencies to quickly drop by hundreds, if not thousands of dollars.
In the top 100 coins on coingecko, there are only 4 stand-alone coins that are valued at over 1000$. So while for Bitcoin swings of 1k are usual for a lot of cryptocurrencies out there even a 10$ drop would mean going into negative territory. So no, not really a common thing.