There are some people that used fiat money to fraud people in the community and they can also use Bitcoin to fraud people which is very common among people in the community, but you cannot call fiat money a fraud or call Bitcoin a fraud than to call the person that use it such evil way a fraudster. I will not deny that people don't use Bitcoin to scam people, but it will be difficult for scammers to scam someone that understand Bitcoin very well, because the moment the scammers are approaching by chatting or sending some fake messages to the person, he will definitely know that they are scammers and he  will let them know that they are scammers. That is why is advisable to have the knowledge of Bitcoin before investing in Bitcoin, because you will know the right time to invest without asking strangers question, because that is where some beginners use to fall victim to scammers.

Bitcoin is a very secure currency. It can be trusted more than FIAT money because if the value of FIAT money decreases due to inflection, that value cannot be recovered, but in the case of Bitcoin, its price falls, but if you hold patiently, it recovers again. If you want to invest your savings in fiat money then after 10 years its value will fall by around 90-100% due to inflection and from bank you can get 60-80% through FD still you will be in loss in terms of value. However, if you hold Bitcoin for 10 years, you will get several times the profit from here. Besides, since if you sell Bitcoin, the money will be in dollars, so the rate of inflection will be much lower.  So I think investing in Bitcoin is profitable in every way

I talk someone and asked him if he knew about bitcoin but surprisingly, he boldly said it was a scam thing. He told me that one of his friends got scammed from investing in bitcoin online by a stranger from social media offering huge ROI.
I understand his stance because of his friend's experience and some people are saying the same. Some people who said that bitcoin is a scam are those people who literally don't have an idea how it works, those people/investors who slip into trusting strangers easily without validating their offer is true or a scam. A scam never happens if we do our part which is to research before investing something. Unfortunately, most of us did this after becoming a victim.

When you’re dealing with people who aren’t used to traditional investing, you never know what they’ll do. In this community, the definition of a scam to some is whether or not something outperforms Bitcoin, thus everything is labeled a scam to them. I think even the most popular investment in the world (S&P500) would be considered a scam if someone here offered it.