Of course it's proper! The guy, and his sidekick Charlie Munger, are investment professionals. They have an educated opinion about investments that's worth hearing!

The only thing that comes off strange about their comments is how uneducated their responses come across. They clearly don't know much about cryptocurrency or why people or we believe it has value. It makes them look somewhat foolish...but I still respect their opinion.

Although he is an expert in stocks I do not think it's worth expressing, I think it's just one of his ways to create a stylish cryptocurrency market and a decline in prices and at that time he started taking the opportunity to buy at low prices.

I can't compare the two topics. Bitcoin is much more difficult to trade now because it's very new. Warren Buffet is with the old clunky stuff.

It's just the way they spread bad news that made panic a lot of people and when it happened the price drop and he took the opportunity to buy bitcoin and bad news news like that has happened so often and actually it is inappropriate to make comment.

Warren Buffett made his money by finding the safest investments and slowly building up his wealth consistently over a period of decades. That describes his approach to investment decades ago and its still the same today. Bitcoin being a new emerging technology which is relatively untested there is likely zero chance Warren Buffett would ever invest in it. Slow and steady is his signature move. I don't think Warren Buffett has ever invested in something new. He tends to favor tried and tested technologies which he believes are undervalued and have a good growth potential.

It is true that equities markets where Buffett made his money, valuate differently than precious metals or crypto currencies like bitcoin. There is the P/E metric in equities markets which could allow a better price/value approximation. Gold or bitcoin have no similar analogue. To some degree: you're right that Buffett is commenting outside his area of expertise. Also Buffett isn't someone who invests in new technologies and so one might criticize him there, too. He's not known for having skill or experience in recognizing good emerging technologies to invest in.

Buffett has always attacked gold and investments other than equities markets. Its nothing new from him.

He's a very old man (87) and he has said repeatedly that he doesn't invest in stuff that he doesn't understand.

During the dot.com boom in the 1990's he thought it was all hype and refused to invest. And from a financial point of view he was right to do so, because 90% of the dot.com stocks being touted were rubbish.

What he missed was that internet tech was transformational and not a fad. He missed taking a punt on Google and Amazon and others. And he didn't understand the detrimental effect that the net would have on businesses he was invested in (like the Washington Post, whose whole advertising model has been thrown out of the winder by Google and online ads).

He's basically doing the same thing now - he doesn't understand cryptocurrency, he thinks it will crash and burn. I don't know if he realises that the tech is transformational, but from his point of view, if you can't tell which are the winners, better stay away from it. Which is fair enough.

NO.

Their role as investment professionals in the US and the world means they have a duty to be conservative and thoughtful in the investment ideas they publicly tout as "good". Many, many people read and follow their investment ideas. If they were to come out and say "Bitcoin is risky but has had phenomenal return in 2017" they could inadvertantly persuade many, many people to buy Bitcoin. This fact of their expertise and public role on the world stage requires they be careful with their public comments.

But, I genuinely believe they are against the idea of Bitcoin and cryptocurrencies.

Given such comments will lower the bitcoin price, but the decline in bitcoin prices is not a bad thing for us, because we can start buying bitcoins at low prices because of bad news stuff.

Warren Buffet is a famous person and a big investor.

He is also very old and does not understand Bitcoin. His advice on stocks and old investments is good but cannot be trusted when it comes to Bitcoin.

buffet, Dimon, jak ma and other big investors who have commented in bitcoin and cryptocurrency have the right to say what they want. As they study the economic and financial market for long time with their expertise in in financing and investment many of their statement affect the market as they have many followers (count me in). I don't believe that they don't have knowledge about bitcoin and cryptocurrency, bitcoin now is a big thing that recognize by many people around the world, i believe that these people are protecting their investment. But for me it is proper for them to say anything about bitcoin. In addition I watch a video that Jak Ma say that he don't know about bitcoin, but he is looking forward in the blockchain technology.