Scammers will always be there, so it is up to the user how he will avoid being screwed by them. Do not be tempted by too-good-to-be-true offers.
And you should be careful in entering your personal details to online sites. Check the legitimacy of the sites that you are visiting because a lot of them are just phishing sites.
When tempted by a tempting offer from a scammer, that's a good start for a scammer to influence that person.
Many are finally fooled by the lucrative bonus offer method. Even scammers are currently making offers like Buy 1 Get 2, which are scattered with advertisements on YouTube and elsewhere.
Scammers target ordinary people who don't understand about the world of crypto, then influence them to make investments by promising a double bonus.
-snip- But this is investment so one must know how to earn on it.
Not just how to produce it. in investment must also take into account the risks that will occur. Every investment made will risk the money you invest.
Making more from investment is everyone's hope. But the loss experienced is a faux pas. Don't be too greedy for a result to be obtained.