I don't remember to have seen a good one actually

But that set a new record with dev fiddling with the blockchain until it gets his premine (and screwing everyone at the same time)
Yep.
"blocks" : 277,
"moneysupply" : 836000.00000000,
600k premine.
NOT 600K, BUT 560K. 0,7 x total supply. see OP with details
You mean 1.4% of the POW coins, as you will earn some coins with POS too, no? So it is a 1.4% pre-mine if you don't spend any coins.