Because updatedb isn't inherently useless, but rather that file system caching (especially for pages read once) shouldn't eject application pages from RAM to disk.
Being able to run locate and have it quickly return an accurate result is useful at times. I just don't want it paging my entire session out to disk every night in order to do that.
Being able to run locate and have it quickly return an accurate result is useful at times. I just don't want it paging my entire session out to disk every night in order to do that.