Why does a Mac require this? I thought they just worked? That's what I was told when I got it. No worries mate! Guess not. If it's so important why doesn't it schedule them? Windows schedules maintenance. I don't get that.
Particularly disk systems. That is the dirty little secret no one tells you about. Anything that windows does is all eyewash i.e. Bull Scat I'm retired now but spent fifty years in IT datacenters They all need periodic maintenance All computer systems require periodic maintenance.
managing IBM op/syss; Bell Labs Unix© op/syss.
and 5000 windows server network systems.
They don't require it. And for the most part they do just work. I have never routinely run Diskwarrier on any of the numerous Macs I am responsible for. Repair permissions is a good idea every so often.