How can a fork happen?
Why would somebody fork it?
Can somebody explain that to me?
Google....
To kill the project...
Google...
It would take forever to explain how/why a fork like this one occurs.
Best guess is that it is/was an inside job.
Masternodes tend to reduce the likelyhood of a fork, but, a ton a hashrate (big miner) could've done it.
That's one of the problems with these hybrid PoW/PoS coins - they are really meant to me PoS ONLY.
There should be some limiting and safeguards against a big miner forking the chain.