They call bitcoin scam, Maybe right they say that for reputation Or they think bitcoin will broke their bussiness, Or if they support bitcoin what will every people say? using stand alone currency. But i still support bitcoin anything happen.

Warren Buffett, Bill Gates are very well known and big influencing personalities and if they calling something about the bitcoin then we should first respect that because they are known to be the business tycoons and having such a great economy knowledge, and anyone will not believe this easily that how could one investment can provide such a huge profit in a very short span of time and for that people needs tu understand the fate and potential of bitcoin and for that awareness could be the biggest influence.

None of them has said that bitcoin is scam mate, you maybe misunderstand what the media said. But Bill gates say that he against investing in cryptocurrency And Buffet say bitcoin will likely end bad so none of them say directly that bitcoin is scam

Maybe because they know all the risk for using crytocurrencies and they're afraid because the world will lead into chaos if crypto will not be used for good and also for some other investments they have in banks so that they want to suck fame Bitcoin.

Because they knows that this technology can create more new millionaires like them but they don't want someone to be in the richest person of the world,bitcoin can be helpful in diversifying the money to the people if they can get into the bitcoin at the early stage.But no one is going to hear their words so better skip them and concentrating on making yourself better.

Famous and talented people will never say things they are not sure it will happen!
So, you have to decide for yourself!

Warren Buffett and Bill Gates come from the old school generation, where financial systems followed certain rules. Warren Buffet followed those rules and he became very rich. Now, Bitcoin is developed and it is breaking a lot of those rules and this is raising red flags with them.

They are used to being told by governments that you have to use Banks and you cannot move money from one country to the next, without following strict capital controls and Bitcoin is not following these types of rules.

Remember, Banks and governments supported these people and any technology that threatens these institutions, will be perceived as a threat by the people who followed their rules for years.  

there are thousands of others who are bitcoin experts and are praising this great technology like Andreas Antonopoulos, why aren't you listening to them and quoting them? you are focusing on a handful few that spread some FUD about bitcoin at some point for certain reasons and the worst part is that they are not familiar with bitcoin. for instance someone like Warren Buffet is ancient so he doesn't know what new technologies like bitcoin are

You are a good researcher sir! I hope OP could give us link were in there is a quote that they actually give a statement like that. Please stop that kind of posting topics since you do not have a link or basis. Its just like creating FUD here in forum and you might get red trust/s because of that.