For how many years doing crypto, I observed most of the bounties are scam. It’s like 75% of bounties are illegitimate on joining. These are some tips to know if it is scam or not.
Scam:

No Profile Pictures you can see on their sites. Like Facebook and Twitter etc.
You cant see actual videos of their faces. Persons on Profile Pictures and Videos should be the same person.
Check if their ICO is really on the Ico list. If it is rank in the review.
Always check their post in social medias if it is connected to each other.
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And some more…
To those Legends in crypto.
You can add some more details about this topic.

Nowadays, more and more members are joining bitcoin. It came to my mind if there is an end for it. As I read in the media, some countries are against Cryptocurrency.

Do you think someday cryptocurrencies will end?
Is it too late to invest?
Do you still beleive in crypto?

okay! First we need to know what is PONZI SCHEME?
A Ponzi scheme or what they call “Red Flags” is an investment fraud that pays existing investors with funds collected from new investors. Ponzi scheme organizers often promise to invest your money and generate high returns with little or no risk. But in many Ponzi schemes, the fraudsters do not invest the money. Instead, they use it to pay those who invested earlier and may keep some for themselves.

With little or no legitimate earnings, Ponzi schemes require a constant flow of new money to survive. When it becomes hard to recruit new investors, or when large numbers of existing investors cash out, these schemes tend to collapse.

Ponzi schemes are named after Charles Ponzi, who duped investors in the 1920s with a postage stamp speculation scheme.
Source: https://www.investor.gov/protect-your-investments/fraud/types-fraud/ponzi-scheme
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As per World Bank says, Bitcoin is not a Ponzi Scheme. They have completed a research on bitcoin. They concluded that bitcoin is not an Anti Bank.
It seems that bitcoin has a great help for them.

A far better question than “What is Bitcoin?,” that fewer common people have asked than should, is “What is The World Bank?” Bitcoin is a revolutionary digital protocol that supports an online currency of finite units whose value is based solely on market demand. This digital currency’s current market capitalization value is just over $5 Billion as of this writing. “The World Bank” is, according to Wikipedia, “A United Nations international financial institution that provides loans to developing nations for ‘capital programs.’ The World Bank’s official goal is the reduction of poverty.” Really? How’s that working out so far, after seventy years in business? . 
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So no wonder nowadays, more and more people who are using and engaging in Bitcoin. Because they can earn more in bitcoin and they can make an easy work for their companies to be known.

The Philippines, with a population of over 100 million, is currently served by two major local bitcoin exchange businesses; coins.ph and BuyBitcoin. Both appear to be well operated, economical, and offer normal exchange services as well as some value-added services. When exchanging bitcoin into PHP, both offer bank deposits (free) and pick-up through pera padala businesses (for fee a little above what they are charged  by the para padala business).

For the short-term future, I see the main use of bitcoin in the Philippines to be for remittances into and out of the country. Intra-country use will not develop until the Filipino can see an advantage in its use over cash.




It's true that most of the businesses that accept bitcoin are only distributed along the confines of the metros. Also, slow internet connection with such a ludicrous fee (I'm paying $50 for a 3Mbps turtle) is another hurdle when it comes to using bitcoin, given that the network runs through the internet. SMS, on the other hand, is very active within the Filipinos. If only they can make a wallet SMS-ready or transactions can be made through SMS, many Filipinos would consider using bitcoins as well. Also, the main thing that I see people here would use bitcoins is mainly for remittances. I experienced one time when my uncle sent money from Canada to Manila, it took 2 days for the process to complete (which is nuts, because I need the money that same day), whereas in bitcoin, you don't need to wait for that long because transactions are made within a span of minutes from anywhere in the world. That's a +1 for me because I have relatives in other parts of the world that often send money to us.

Exchanges here on the other hand, do little promotion and advertising. Coins.ph do the same promotion in Facebook among others, and tbh, coins.ph is a nice exchange because they really deliver their customers' needs. They also have great customer service that replies instantly and helps you with your problems. Some other exchanges, I'm not familiar with, but I haven't heard a single time in which they do some shit over their customers.