ViaBTC has sent emails where they tell that they will change the maintenance fee that is 6% will start to charge 50%. Mining will be a little more expensive but the best part is that maybe we will have more decentralization in the mining.
The change of the maintenance fee refers to their cloud mining contracts and not
to their mining pool. The competition between these mining pools is massive, they would
never get away with a fee increase like this. On the other hand, cloud mining is mostly
a scam in my opinion. Why would they rent out their miners when they could easily
use them themselves without having to share profit with the investors?