My opinion is its mostly because the Bitcoin market is still not very mature. I think we are still on the ground floor of crypto. When you have a immature market and a lot of newbie investors jumping on it because its hot or on the news. Alot of good ole panic selling happening. As the market cap grows it will be harder to manipulate based on FUD. Right now its whale season. They are picking newbies apart and blowing through stop loss like its nothing. Now that BitCoin is on the futures exchanges you will see more institutional traders pop in and pick the bones. Buy and hold in my opinion is where its at. Don't panic and look for more and more buying opportunities. We don't lose until we sell. We can blame Tether news or South Korea regulators but thats just FUD. This is a healthy market correction. To me this is a good time to research good projects and look for buying opportunities. Glad to have found Steem and Steemit. I am big time enjoying this platform and love it here.