User talk:Allen yuan

Please refrain from making unconstructive edits to Wikipedia. Your edits appear to be vandalism and have been reverted. If you would like to experiment, please use the sandbox. RJaguar3 | u  |  t  04:28, 28 July 2007 (UTC)

July 2007
This is your last warning. The next time you vandalize Wikipedia, as you did to Mathcounts, you will be blocked from editing. Kl4m 22:39, 29 July 2007 (UTC)