Yes, i am fan of bitcoin, i hear it first from my officemates and friends, at first i thought it is a kind of pyramiding or some kind of scam.But when i read some article regarding bitcoin in yahoo news i found it legal and legit.

Trading is more likely buying selling of goods or services with exchange of money, while Investing is entrusting your money to a bank or any entity which in return it will earn or will not earn income, even though both trading and investing will give you income, trading is more safe than investing, In addition investing takes long time to earn income while trading has a shorter time to earn income.

I don't think bitcoin can replace gold, even though bitcoin has a good performance in the market and greater value now a days, but gold is a precious metal that the world needed.

Bitcoin and Gold is uncomparable they are difference in nature, let just compare it in terms of price and market stability, bitcoin now a days is more expensive than gold but in terms of market stability, gold is much likely stable than bitcoin.

Buy if the price is low.
Sell if the price is high.

You should find time to check and monitor the price of bitcoin for oppurtunity to earn income.

Bitcoin can reduce unemployment.  it gives income and opportunity to the unemployed

Bitcoin impressed my by its decentralization and other characteristic and it simplicity to earn income, just an effort of participating on discussion you can earn income without investing money.
In addition the most impressive is the freedom of the user what they want to  do with their coin or earing.

Government of other country declaring war against cryptocurrencies simply because they cannot control it, and they cannot collect taxes on cryptocurrencies

Yes it can be replace, if the new cryptocurrency has all the advantages and characteristic of bitcoin and it resolve and fix all its advantages.

Yup it is really one of the characteristic of BitCoin, it is anonymous but still even though the use can hold multiple bitcoin address, there still a so called Blockchain with ls a huge version of general ledger that  stores details of every single transaction that ever happened in the network.

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for 1st question, Nope, i don't feel buying illegal stuff using bitcoin, but it is really possible to use bitcoin but such illegal stuff, because no one can trace you your transaction and for the 2nd question, since it's legal stuff, it really up to you what you will use since Bitcoin still a money/ currency, e currency to be exact.

Everything now is hackable, and yes, Bitcoin can be hacked by hacker,  I am confident that base reading all the article/reply i think it wont happen.

No, i don't feel buying illegal stuff using bitcoin, but think of it you can really use bitcoin in buying such crazy illegal stuff because the authority cannot trace you, but still bitcoin was not created to do should thing.

It depends on where you are and how you use it..  in terms of where you are you should know if bitcoin was legal in your country. Usage of bitCoin it is really up to you if you will use it on legal matters

Because they cannot control Bitcoin, specially interms of taxation.

There lots o way to earn Bitcoin, but interms of east way to earn bitcoin.. go for campaign signature.

It is really hard to tell or to predict how long BitCoin will survive, But as long as people use bitcoin it will last, but still, if someone make a crytocurrencies or some kind like bitcoin that resolve all its disadvantages. I Think that the problem.k

Yes BitCoin for crime, lot of crime for example money laundering and you can buy illegal things using bitcoin without knowing your identity.

Because of it fluctuating price/value that why we can say that bitcoin is like a roller coaster. you just need to observe the price for your selling or investment.

I think base on popularity and it success there is no ending,, it will innovate but it won't end.😊