This is not a good idea because when you check the "use small icons" box, it removes the date from the task bar and only shows the time.
Besides the "use small icons" has to do with the icons and has nothing to do with the text. No, it does not change the size of the text even with a reboot.
As a Microsoft Forum Moderator your instructions ought to include both the pros and cons to your suggested directions and you ought to know the difference between icons and text.
We are talking text.