Disclaimer: Advice is provided to the best of my knowledge but no implicit or explicit warranties are provided. Since the advisor explicitly encourages testing any and all suggestions on a test non-production environment advisor should not held liable or responsible for any actions taken based on the given advice.
First of all, those commands are executed everyday at 10:00 PM and 6:00AM as default. If you change that period, you can check the values on dictionary statistics views start with dba#, all# or user#. For this comparison, you must have the older values which were gotten before those commands were executed.
By the way, why do you have doubts for those commands?