For example once I had a bad cable, and it did a kinda sneaking silent damage. Let’s say 5 or 50 broken files every day. And only after some weeks I noticed some of them, and there was hardly a chance to identify them each day. And sometimes there was damage to the file system, too. It took a while find the root cause.
Today I use ZFS with redundancy and it does the recovery all by itself and my sleep is so much better :-)