Centralized hashing is the problem.

[Amitabh S]

Next hardfork of bitcoin should try to take care of these mining pools trying to dominate hashrate, if that is possible. A few mining pools should not be allowed to swing the hashrate so much.. This is like a coordinated centralized attack.

Pool users should decide where the hashrate goes, not the operators. This is a problem for all cryptos but more for BCH, whose hashrate adjusts more quickly.

[andreyalucas]

Yes, you are right...Thank you for your great information.