Only do it if you have a reason to make the change. There are cases where there are good reasons to customize the text.
Have a look at this topic: Find a translation key with verbose localization. It shows you how to enable “verbose localization” so that you can see exactly where in the UI the text for a translation key is used.
If you enable verbose localization, use the method outlined in the “Enabling the setting for an individual session” section of the guide (Find a translation key with verbose localization). Enabling verbose localization through the verbose localization site setting will just make the site look strange for its other users.