Have you ever considered in forming an alliance like OPEC to limit the hash rate race?

I just saw Bitfury said that their cloud service would only add hardware based on demand, is this a trend towards more cloud based service?
It's funny to read it from mega self miner.
No, it's illegal.
How is that illegal?

It is just a consensus (if it ever can be reached). Even pools can be allied together to protect against a faulty fork in 2013, and against potential 51% attack if it ever happens
Imagine a vendor that have leading semi-conductor process 10nm, he can limit his production scale at a certain level so that the network hash rate increase slowly. He then could start a cloud mining service and sell the hash power at market rate, which leaves him large margin to deal with market volatility. I think that is what Bitfury means