It is quite a bit
harder (but not impossible) to fill a system up these days and the
time between being warned and a critical point being reached is a bit
more comfortable than back when systems were much smaller.
Yes, people who start out with techniques they used to manage disk back on
2GB machines on modern multi TB without even perusing RTVDSKINF&PRTDSKINF
Then again, starting a restore of one stream file (aka IFS) directory when
your machine is like ~10% full and you have six 140GB drives to find out
your at 99% and you're not even on the last tape yet (of just that
directory) does go to show you can fill disk fast.