40k blocks premine - nice.
It was announced in BTCZ discord early. The team answered this accusations a few pages back.
I saw an "answer". In a more common manner it will be - " yes we mined 40k blocks almost in solo. But some suckers from btcz discord managed to get few. Thats why our premine is a little bit smaller than 500 000 000 coins. And we are waiting for idiots to dump them"
I am surprised with your lack of understanding of crypto, how you Google'd and found this website.
Anyway, no one premined this coin. BTCz forked its algorithm away and those who did not want to fork off stayed on the old chain. So this is basically a continuation of the old chain. One of the best developers has continued to maintain this chain and is providing support. Those who chose to remain on the old chain are now mining what is called BZE.
"Premine" is when developers do not release, wallet, algo and nodes so no one else can mine.
There was no premine.