> Asking if everything about the filesystem is a lie seems really odd.

This person was asking pertinent questions, no need to bash it.

I lost some data with XFS after it was declared "stable" in the linux kernel. Every day at around 00:00 the power will fail for around 2 seconds. Other filesystems (ext2, jfs, reiser) will do a fsck, but xfs was smarter. After 2 or 3 crashes the xfs volume will not be usable anymore (no fsck possible).

So yes, some of us do need more than a "trust me, it's ok" when we are talking about our data.