While that is true, you always have the power to change back the page to the way you had it originally if you give a good enough reason. Just click the "history" tab on the page, find the version you made, then click the date, edit that page, copy the code, go back to the current page, edit the page, and paste the code. Easy as 1, 2, 3. Well, almost. :wink:
You can always explain your reasoning in the talk page, too.