No, I will not keep buying as it start to become long term investment. Only buy whenever it is within your capability. Do not extend your capability else you will found yourself in the situation where you have to change the btc back to FIAT and suffer from transaction fee.

Answer is Yes. Banks earn money by collecting transaction fee from all the transactions of their users/members.
In short term, Banks should not be afraid of cryptocurrency. Yet, the situation may different in long term.

Even though cryptocurrency has become a trend in the world, but most of the poeple still using their country's bank note to survive. For example, you are unable to survive with cryptocurrency only without changing it to FIAT in most of the countries.

Bitcoin itself is not dangerous or will it do any harm to the owner. In fact, the Bitcoin is the victim if the owner decide to use it for money laundering which already happened.
Besides that, Bitcoin was already famous in the black market far before the cryptocurrency become a trend to the world last year. Yet, it doesn't mean owning bitcoin means you have participate in illegal trading or others. Instead, it depends on how government think of it and will take what course of action toward the Bitcoin. 

Bitcoin was an investment for me with low risk and high profitability in my opinion. But nobody able to forecast the future of it as many things can impact the bitcoin and other cryptocurrency.

My opinion for the EMP bomb that could cover the Earth is the world would be in a lawless state where all people will start panic and from there many things could start happening. For example, war, disease, fighting over food and much more. Ya, the Bitcoin or other cryptocurrency would be the last thing you need to worry about.

Yes, so my opinion would be the same with others. If the EMP only able to cover a town, there are nothing to scare about it unless your hardware wallet(Cold wallet) are within the area(Without any proper protection).

I do agree with the sentence where not most of the airdrops would make us a profit. Rarely some legit airdrop would be helping us in making a buck.

Besides, if you calculate the amount of time and effort you are putting into airdrops of different token or coin. You would found that you are actually using your precious time to do your favorite things which is participate in airdrop. In the end, those earnings was your hard earned money.