LOL. This problems you have pointed is just being ignored by its users. You know why? Because it has been very profitable, of course RISK will always be there, but it is nothing compared to the price you can get.
Big NO bitcoin is very useful if you really a believer in it and you are not joining here just to earn money and everything but yes I know that the thing that comes to your mind in joining or starting bitcoin is to earn money (and I am guilty of that too) but what I am saying here is that bitcoin is gonna be useless to you if you do not put any dedication effort at time to learn how is it gonna be useful in your life . one thing is a problem to us people sometimes is if we earn today we are ok but if something disappoints us that's the end of everything.