That's true, they also evolve over the period of time.
And that's why some techniques of these scammers might look new but if we're going to analyze each of them, if you're a greedy person you'll be a victim of theirs.
Lack of awareness of our emotion also drives us to fall for these scams when we're kind to these scammers thinking that they're not going to attack us and have no bad intention when we talk to them.
It's two way for most of us, the scammers reaching us and we answer them through kindness and taking advantage of it. The other thing is about being greedy.
You don't need actually to analyze them, you just have to learn on how the scams works and what platform they are usually using to get or attack their victims so you can avoid them in the future and advice someone/anyone if there is obvious scam attempt too which is usually posted by someone online.
I agree, once we had an idea and we've learned how they work, it's going to be easy to figure out which ones are the scams.
I agree with you that bitcoin isn't the issue, it is the behavior of man. The reason scammers are so effective and keep getting away with it is that they are continually adjusting their tactics to fit the times, technology and people's emotions. Greed is certainly a major influence, particularly if the victim is offered unrealistic profit or guaranteed returns. But not greed alone is the motivation for scammers. They also have other strong instruments: fear, trust, kindness, urgency and ignorance. Even if you are a veteran user, you can fall victim to them if you're not careful. That is why continuous education and skepticism are important – scammers evolve just as quickly as does the industry.
And they will continue to change their tactics once they have been known by the people and their victims.
They'll use the technology for their advantage and those who are not aware of it and lacks knowledge of knowing them will be the victims.
Greediness is also driving a lot of people, newbies and not into falling for the scams that they do so remove that attitude towards investing.