snapshot timestamps should be time of creation
I notice that the timestamp on a snapshot gets set to the mtime of the origin volume (at least it works that way on LVM1).
I suggest it would be more meaningful to users if the snapshot time could be made the time of snapshot creation.
I am currently 'touch'ing the origin filesystem before calling lvcreate, in order to get the snapshot to stat the way I like, but it may be argued that touching the origin is not desirable (the origin may even be unmounted, of course).
..jim