The sudden pump in value last 2017 might be just being manipulated by whales. There is no denying that Bitcoin could not be totally controlled by anyone but it could be manipulated for short term effect in price. The price is dependent on the supply and demand, that is why people who has large volume could even make large demand and then suddenly withdraw it causing sudden dump.

Do you really think the price of the bitcoin at the last quarter was the actual  price of the bitcoin? If you look at the price chart carefully, you will see that the price of bitcoin was increasing very abnormally. That kind of rise is never healthy for the bitcoin economy. The price needed correction and then we got it. Now we have a steady rise of the price which is actually very healthy for the market.
Yeah, the more the coin is being accepted the better the price will be.

There are too many instances that will probably happen why the bitcoin price is very highly volatile, people always wanted an instant profit, when they saw bitcoin starting dragging down they will panic and sell. In that case, bitcoin will slowly have a recovery in the market price.
Only strong hand holder will help bitcoin remain the price, and some point is a whale manipulation. Some of them having huge money to play the market situation that might affect the price movement. Accepted globally but still need mass adoption not only accepted to make the price goes up.

Most of us believe that the reason behind bitcoin price dumping in 2017 was only whale game but personally i will not put all to them. There was some negative news effect where bitcoin holder got panicked and as result they fear to hold that. Wherever in recent time bitcoin has already showed us a positive turnover and good time will shake worldwide crypto holders hand soon.  

Up till now, it still beat my imagination why bitcoin is still this low, despite tremendous increase in users database and greater global awareness as compared to 2017 when the community wasn't as large as we have now. Some persons have blamed whales and others allege the fall is a conspiracy theorem. 

Massive speculations have been affecting Bitcoin especially towards the end of 2017 and early 2018...and when people realized that Bitcoin could not go on growing up on its price many were disappointed and eventually lost money. I am not saying that speculation per se is bad because it is just a natural phenomenon once a thing has a perceived value but too much of it too soon can be dangerous similar to an overheating economy. People should be education when they enter the Bitcoin bandwagon so they can decide right and can act according to rationality and not on emotions. We need more and more people and institutions to enter this space with the correct mindset.

I dont think that's the main reason why bitcoin bumped crazily during the end of 2017. It was just whale game who want to make huge profit, luckily their game was followed by most of ordinary investors. To be honest I do not want to see the similar thing happen again in the future, it is better if the price is increased step by step instead of sudden pump then followed by sudden dump.

Well, I don't believe that there should be constant increase in the value of Bitcoin. And what happened to the price of Bitcoin after the hike of its value bin 2017 could be attributed to so many factors range from high volume of sell order to other fundermental issues.

Many platforms began to implement crypto bans, primarily Reddit. I think that the price drop started this way. After the bans on Twitter, Google and Facebook, the price decline accelerated.