Uninformed people read these clickbait bullshit article about the death of cryptocurrency and believe it to be true. What we are seeing is the prices settling down after a period of unprecedented growth.
For example lets look at ethereum:
11/1/2017 - $305
12/1/2017 - $444
1/1/2018 - $750
1/30/2018 - $1156
This shows crypto is stronger than ever. It also shows how valuable the token has become. When a token rises in price, people start mining it, pushing profitability down as the difficulty rises. This is a normal function of the ecosystem and in no way means there is a problem or a crash about to occur.
Also, if you are using whattomine and chasing profitability day by day, it shows you have no understanding of how to properly mine for future profit. People mining aren't looking to convert their coins the second a payment hits your wallet (if you dont do this the whattomine calculations become increasingly irrelevant after a few hours). You should be mining coins with the intention of keeping them so that you can profit in a large way later on down the road. A shortsighted approach to mining will cause nothing but pain.
E.G. I was mining ETH when it was $8.50 per token. I held onto all of those tokens and now they are worth ~$1100 each.
Mining is a long game, plain and simple. If you fret over it daily you will be miserable and probably not want to continue.
You have sold nothing along the way? Not saying your hodl philosophy is wrong however i can totally understand why someone would sell what they have mined. The story could end at much lower prices too. Again not saying that will happen but it could happen.