My primary usage as QA is to use some DB as a baseline, run old code against it, run new code against it, and compare the results. Most of the differences are the times that records were updated or other time related fields. I am only interested in the data differences. All of the datetime field differences clutter the comparison and increase my analysis time by about a factor of 20.
I know I could go in and manually find all of the datetime fields in each of the 300-600 tables (depending on the DB) and un-check all the datetime fields for each project, but that is also extremely time consuming.