well... Idk, the spawn mine thing was pretty good cause we can get our own minerals ez and quick, down side to that is that every object (including the super golden apple)'s price will drop since the whole server would have loads of em, and that people can make loads of ores and stuff easily and abuse em at /warp shop making it a little too easy to gain money (unless this is balanced). Or if u disagree to my point of view, think of it this way... Pros or rich people already hard enough with 1 super golden apple? Imagine them buying tons or making tons more than u could and fighting u with it. they'd be unstoppable.
i agree it should be added again and as CaptNeptune said is op well for hi yust remove gold #ProblemSloved and it was op for those who hape op picks fortune yust big the whole mine XD so probably wont be added again