Your recent editing history at Park Min-Young shows that you are in danger of breaking the three-revert rule, or that you may have already broken it. An editor must not perform more than three reverts on a single page within a 24-hour period. Undoing another editor's work—whether in whole or in part, whether involving the same or different material each time—counts as a revert. Breaking the three-revert rule often leads to a block.
If you wish to avoid being blocked, instead of reverting, please use the article's talk page to discuss the changes; work towards a version that represents consensus among editors. You can post a request for help at a relevant noticeboard or seek dispute resolution. In some cases, you may wish to request temporary page protection. You may still be blocked for edit warring even if you do not exceed the technical limit of the three-revert rule if your behavior indicates that you intend to continue to revert repeatedly. SMS Talk 16:33, 20 December 2011 (UTC)