This is the only warning you will get for the bad changes you made. If you vandalize Wikipedia again, as you did to List of U.S. states by area, you will be blocked from changing Wikipedia. Chrissymad (talk) 18:51, 7 July 2017 (UTC)[reply]

If this is a shared IP address, and you didn't make the change, consider creating an account so you can avoid notices that are not for you.