Ethereum co-founder Vitalik Buterin has summarized the implications of soft and hard forks amid growing tensions surrounding Bitcoins future.
...There is an essential difference between hard forks and soft forks: hard forks are opt-in, whereas soft forks allow users no opting at all, he wrote earlier this week.
--> he is right. He also tried to force people's hands with a soft fork, and when that was a technical disaster, he conceded a hard fork, and ETC was born

Proponents of hard forks are often derided as trying to effect a hostile takeover of a network and force users to go along with them. Additionally, the risk of chain splits is often used to bill hard forks as unsafe, he said.
It is my personal viewpoint that these criticisms are wrong and furthermore in many cases completely backwards.
Well, if there's one thing one can say about Vitalik, is that at least, he knows the basic dynamics of crypto well

Something that cannot be said about many bitcoiners...
With a hard fork, the market chooses.
With a soft fork, a majority of miners imposes their view on the whole community.