Bitcoin was not only designed to be a currency. The currency characteristic is just one. It is also.originally intended to be a decentralised medium of transacting I.e one can convert his country's currency into bitcoins, then send it to some other, using the public key, to wherever without bottleneck bureaucracies or government interference. And definitely, bitcoin is fulfilling at least one of its main purposes which is; a hitch free and seamless means of moving cash around the globe.

EFF all the way.

The smart thing to do is to sell off. Only greed or really good prospect in the coin rallying further will restrain an investor from taking profit. Sell off! But most investors will only learn bitterly from experiences only when their fingers get burnt, all because of greed. The experienced or smart ones will quietly sell off and wait for the market to dip considerably before going in again. In most cases now, markets are deliberately pumped to introduce FOMO with the intention of crashing/dumbing the price on late buyers.

My biggest regret in crypto is ethereum. Not because I could not invest in time, of course I regretted not investing in bitcoin when the price was about $90, but because the ethereum open source protocol has made a mess of crypto. Now, crypto is not what it was originally intended to be solely because of ethereum.

Business is a win and loss scenario Bro. You win some times, other times, you lose. What keeps you moving is ensuring at all times that there is a quite marginal positive difference between your profit and loss.
Losing half of your total value is not commendable, but I believe you are still in good fortune, and, this is crypto! I don't think pulling out now is a good idea either. HODL, and expect a bullish run. It will definitely come. And to succeed with that, I suggest that you take your mind completely off your crypto investment portfolio. Good luck.

People see as an untraceable medium to launder money, while others outrightly call it scam. When you tell some people that you are into bitcoin, they will ask: "what's that?", some with apprehensive facial expressions.

Do not bother about a whether bullish trend will last. Leverage on making save profits in stata

Whatever you do, you still need your fiat currency to spend your cash. And, this will require the services of your local bank. Because bitcoin use is not widespread and bitcoin is not widely accepted, compared to normal banks, it cannot be a disaster for banks

I think Japan, USA, and China are top traders. I would never imaging that Venezuela will make a spot. Not in my wildest dream. However, it is understandable if Venezuela is one of the top bitcoin traders because of the bad  condition of their national currency.

It depends on the kind of investor one is. For traders, their aim is always directed towards identifying trading opportunities to make safe profits. These type of investors what be particularly interested in holding. Holding here signifies a relatively long period of investment, I.e time of investment proportionate to time of profit taking. Depending on a number of factors, one may be advantageous or disadvantageous to the order. So, it solely depends on your style of preference or approach.

No! Bitcoin may rally on a high bullish run but I don't think it will hit $100k that could happen in the next 15 to 20 years. Surely, not in 2018. I foresee a bullish run by December for most cryptocurrencies including bitcoin. And, I also forecast a 10k to 15k bullish price range.

Many people are not digitally inclined. Some abhor electronic money, they prefer the hard cash. And, this set of people will always be there. Bitcoin is for the future generation. Accepting it is also dependent on instituting suitable academic curriculum for students to be exposed to a relatively newly evolved digital way of transacting business

Bitcoin is miles apart from the second commercially viable crypto coin: ethereum. Being the first of its coin, it is the sure leader of all altcoins leader.

It's just 10years of bitcoin's active existence. 10 years is lot of time to effect any kind if change drastically. Bitcoin has grown in leaps and bounds and, is surmounting all attacks; instigated or coincidental. But I think its still early to safely assume that the coin has "seen it all". I think there are yet tougher challenges for bitcoin in times to come. Especially when developing economies begin adopting crypto over dollar denominated global commerce. The "heavyweight" will not like that, and would recourse to using propaganda and all kinds of possible or impossible tactics to demean the lofty ideology behind real cryptocurrencies, desperately fighting to retain that top spot.

So far as the word "digital currency is concerned, nothing comes close to bitcoin. So bitcoin is definitely a digital gold. Gold itself is worth much lower than bitcoin. This fact alone answer's your question!

Considering the mining cost, bitcoin as a "progenitor coin" , circulation amount, and the very evolutionary solutions bitcoin brings to our civilization, and also the time of inception and the present, it is safe to say the coin is worth something. Say... $5000, as a stable price point.

As it stands, bitcoin can go either way. But, it would be wise of you hold, in anticipation of a repetition of a bullish run that occurred late last year. You never know!  But how do you justify the assumption that the end of bitcoin (which is trading at above $6000) is near? Food for thought.

Any serious crypto ICO project should have a blue print. An d this information detailed enough as to tell you the reason the coin is created and the problem(s) it wishes to solve is often the "whitepaper". The next thing a potentially investible ICO project should have is a website convincing enough. I believe when you see a good website, you will know one.
After carefully studying the whitepaper which must be detailed enough, and you are satisfied, and have strong reasons to fill that such a project is feasible enough to make a successful execution in future, you may then decide to invest. But don't forget that most projects definitely need time. Originally crypto was meant to be an anonymous but this days, some coins have information about its creators. This can also be a confidence injector.
This is how it is supposed to be. But sadly, the infidelity and greed of people venturing into the crypto space has made crypto and ICOs a caricature of their original plan, and the fault of this is the open source ethereum protocol. Because any body can create a coin, the whole coin market is flooded with empty and criminal projects and investors are constantly exposed to potential threat of loosing their money.
If you want to invest, please endeavour to do a detailed review about the ICO, this is your responsibility.

Yes! You can buy No BS or/and kingxchain.

Many are not. Just a little here and there are worth your money. I think that before you invest in any ICO project, look up their whitepaper, rate their website and examine the project team, inquire and read reviews about what others are saying about the project, think long and deep about the project, then arrive at a conclusion. Most times, a simple intuition will guide you on the kind of decision to make.