What will happen to the price, that's really difficult to predict. But technologically, it's not so difficult to know what is going to happen.

Lightning Network is in very advanced stage of development, there are already people making successful LN transactions on the mainnet. So I would say that, if things continue at this pace, Bitcoin will only get better.

There is no such a thing as an investment that is 100% guaranteed. It's all about probabilities, and that's valid especially in trading. So my answer is yes, diversification is a must.

I always found strange the way their exchange rates differ from a few other trading websites, but I guess that's not enough to say they are scam.

The network is working incredibly fine. So I think it's just the fact that there is not much hype around it right now. And maybe it is a good thing, since there was too much people entering crypto for a quick buck, without any knowledge about the technology and no long term mindset.

Maybe the creators are cashing out those billions.

Trading has always been a difficult job. What actually increased was the number of users without experience trying to be traders. That's why we are seeing so much crying about trading losses these days.

Are you asking if there will always be price fluctuacions? Of course there will.
In any free market, price is defined according to how much people want to pay for something, and for how much they want to sell. Since economies and people's mindset are constantly changing, it is natural that the price of Bitcoin will always fluctuate.
However, as there is a increase in the use of Bitcoin, there will also be an increase in trading volume and liquidity, and it may help Bitcoin to be more stable.

It might be exciting for those who don't go all in at once, and do keep a reserve for moments like this. But I'm pretty sure this is a minority.

We live in the information age, so I don't know how someone could have success in life without education.
Informal jobs may pay you, but not very well.
Not having money to pay for education is also not an excuse, since good sources of information on the Internet can give you a level of education that you won't find anywhere else.

Are you kidding, right?
What is better. You hold your coins yourself, or ask someone else to hold it for you?

I would say it's too early. However, I speculate that the number will fall drastically until the end of this year. People will see that they were buying empty promises, and those who did not sell earlier will have to learn the hard way.

You can only speculate that they have sold a lot of bitcoins, cause if that's not the case, their actions goes against logics.

However, don't forget that we have very talented people doing a good job improving Bitcoin, like Adam Back, core developers and people building stuff to the ecosystem.

It looks like many coins that have nothing to do with decentralization, like XRP, are still around after many years, and at high market cap. So it's reasonable to say that many other cryptocurrencies, with much better decentralization and new features will still be here for years.
But speculation is not enough to maintain them sustainable. So the point is, will people find a real use case for them before all these things crash?

Nothing is for sure in life, but I agree that the future is bright for Bitcoin. Most people who invested without being desperate for quick profit have succeeded in their investment, so the key is to be patient, and never put any money that you may need to withdraw too early.

It is a very speculative asset, but you might be ignoring or underestimating the number of people who choose it as a way for diversification and preservation of their wealth.

The fact that it is the first and only unseizable asset ever created opens the possibility for multi-billion dollar investments in the furure.

How can a coin with infinite supply outperform Bitcoin in the long run?

I think the biggest problem is spam. Mindless comments should be moderated. Since moderators of the forum are few to deal with the problem, each campaign should have its own, and campaigns without proper moderation should be disabled.

So, no fundamental reason for the price drop? In that case, it's quite possible that pump&dump groups are suppressing the price. I wonder for how long they can hold it down.

Hopefully miners will stop switching to bcash.

Since there is no regulation, people will have to learn the hard way. That's how the free market works... it all depends on how much people are willing to educate themselves.