Questions:
would you 100% trust them?
NO!.
Earning few percent per year vs. losing the big amount of cryptocurrencies fund?
This is a classic question of, that is, you just have to add the exclamation points.
I do even have questions in mind on how the hell those people do consider on putting or trusting up their funds to be into those third parties or companies that do offer annual growth interest rate with their crypto
which they havent realized that they can be possibly be gained up by just holding your own coin into your own wallet?
I dont know on whats up to their minds but to think up the volatility basic aspects then you can possibly earn more on the amount that you do expect on using up those services or platforms.
Its just really that nonsense for them to consider.