From all the major flaws presented in Bitcoin one could say PoW is the major flaw of them all making the coin more centralized than even most people can't afford to keep up with other miners, these are day traders doing there thing again making profits on your losses, beware most say it's like gold it doesn't need to be fast but in reality it just isn't so secure.
In your face man, we have already seen the price of Bitcoin break the price of $4000 and have even gotten to $5200 and you will still be shocked because the price will soon grow to $6000, you are one of those persons who love to spread FUD news in the crypto space but one thing you should know is that people in the crypto space don't really care about FUD news anymore due to the experience we have had in past times of 2017.