What do you mean by max coins = unlimited?
If this is the case you can mine coins at will and sell it bulk which will bring down the price.
Am I understanding it correctly?
It is a plan that 50% of Premine is for AIRDROP(40%) and reward to collaborators(10%). Another 50% is to be sold at special price that is 1 satoshi per 1 SDGO after the coin is listed on Exchange. When there still remain premined coins left after that, all of them are to be burn except for some reward. (As of 25/4/2018, we decided send and will sent 6G30M SDGO in the 10G)Normally All Lockup. (other case:sent reward etc...) So,you don't care sell out operators after 1sat sale.(from website)
We will have only a few SanDeGos and do not stake them after listing on Exchange and ends 1SDGO = 1satoshi sale.