Crypto market is different from stock market, in stock market long term investor has more chance that result as a profit at the end of the day but as crypto market investor it is better to liquidate in some levels, turn it in to cash and reinvest again. As a newbie the best way is to make this with a small budget because most of the beginners resulted their investment as a loss at the beginning it will develop by time, I am also one of them.

Nowadays I am studying on 'wash trading' about bitcoin, I have some doubts regarding that. 5kUSd level is become very strong, we will see these levels in a short term. As bitcoin approach to these levels the crypto currencies will be dead. Bitcoin is become a leader in crypto market, altcoins have a positive correlation with btc.

It’s one of the larger deals in the crypto-economy worth around 400million usd. Poloniex is the 18th largest cryptocurrency exchange by trade volume now it should increase its ranking by this JV.

While bitcoin introduced as an alternate for the current banking system as of fast transaction times, no regional limits, low fees. But as I see by time all of these things are also solved by banks like the transaction times and fees gets lower. But in general I have been trading bitcoin for several years and I learnt a lot, blockchain technology as well. I am believing it so much.

The main reason China’s desire to end the United States dollar’s worldwide dominance and political hegemony. China is participating on blockchain securities settlement as well so they are fine with the blockchain technology unlike bitcoin.

Bitcoin has made people mind complex so if you do not know how to trade or which parts you should be careful do not invest. All crypto currencies are in-organized, dark background, dependent to software that can be hacked, not backed by any authority.

For me - well it might not be 100% scam or ponzi, but it will probably fail anyway. Also bitcoin is not backed by anything, this is the major thing behind my theory of a ponzi but if this changes in the future then I might withdraw my comment above.

Criminals are cashing in on Bitcoins for illegal activity, the mass media make so many these type of news so some people are agains crypto ecosystem due to think that this will harm people. Using Bitcoin cashpoints to launder dirty cash. Bitcoin is a limited supply and the
 price is paralel to the demand— only 21million will ever exist — and that it is completely unregulated by banks and governments, making it attractive for criminals or those who want to keep their transactions secret. This should be solved.

You decide each give their own decision after read the below comment.

Bitcoin dominance was around 63% of the total market share two months ago now it soar to 38%. Sideline money and bearish altcoins continue to flow money into this market. Bitcoin the most well-known currency has the largest network effect current market cap is approaching $164 billion it was around $300 billion two months ago.

I sold and waiting to buy from bottom.

Bitcoin might reach $100,000 levels in 2018 this is general prediction. Bitcoin could also see much much lower levels around 5kusd it depends to the market updates. If we have similar news like we had last month : Bitcoin exchanges in India suffer bad times as the biggest national Banks of the country have frozen their accounts. The news led to turmoil in the domestic market as well as bringing the price of bitcoin down.

Ease of transaction with-in or inter-states same, you have the control on your fund no intermediary. In the blockchain technology anyone can verify the transactions anytime. Personal information is a secret but public address can be seen by everyone.

After the two biggest market cap cyrpto currencies Bitcoin and Ethereum, there are more than 1,200 coins and tokens trading in the market. Deciding which one would be the most profitable in the short or long term can be extremely hard. If you invest by picking from the market cap list of first 5 alt coins the return will be much higher than bitcoin, I have been doing this for a long time.

The price of Bitcoin may go for a 100kusd nobody will surprised due to its price is based on pure speculation. As we had the dotcom bubble in our recent history, it is not backed by any governmental institutions or intermediary. I expect everything can happen. Its price is rising only because of the creating stories. Investors are taking out loans to buy Bitcoins.Keep in mind that 22.13 percent of Bitcoin investors did not pay off their credit card balance after purchasing Bitcoin. Bitcoin reflects merely demand for the mirage of its speculative value rather than a usage as currency. They are currently seems to be right to think that bitcoin is a Ponzi, hopefully it will change by the developments should be done.

Investing is a long-term undertaking, creating a portfolio from different cyrpto currencies, to diversify the risk between them. Investors are not effect that much of traders from the price volatility because in the cyrpto market the volatility is not small. By contrast the trading is a short-term strategy. Trying to open along position from bottom and short pos while reaches its peak. Investors can be more patient during the market crashes, have the capital to re-invest. Both cases have advantages and disadvantages, it depends how your personal behaviour is. I am saying that I am an investor.

Bitcoin was invented by an unknown person. It allows money to be transact directly between individuals using cryptography. The bank ledger is distributed to all users, and complex mathematical transactions ensure transaction integrity. It is not traceable by any authority, the transactions can not be identified that who is making it, this might open a gate for corruption, money laundering, drug dealing etc.

As 1000 people holding the portion of 40% of the total bitcoin supply, they have the power to impact on prices of bitcoin as a manupulative attacks. Taking the power from blockchain technology, bitcoin can be exchanged p2p without backed by the governments, central banks or any intermediary. There's nothing to stop bitcoin to value from falling.

Those are manipulative attacks mainly arise during the market is volatile so the small investors should be very careful to not loose their investment.

Bitcoin is a publicly available ledger with a cryptographic numbers help to used as a currency without having backed by central banks. 

Based on this subject I want to give an example that if bitcoin is gold let's say, alt coins would be other commodities like petrol, platinum, silver etc. There is no physical valuation behind these digital currencies, no income or etc assets in the accountings. All currencies has some obstacles but in the whole ecosystem bitcoin will be the loner existing crypto currency, the value can be soar but existing. No other alt coin will be able take its crown.

Trading platforms are the main concentration area of me so I can say in general to be sure that has  good reputation, few fees, verification requirement must be well enough ad I think the most important is the volume as much as high volumes . Nowadays in the market so many problems arise from the exchange platforms fraud, hack etc. we have to be very careful.