User blog comment:StarBase10/Vandalism in Roblox Wiki/@comment-5149590-20130724084614/@comment-4196050-20150407115955

I took a look at his contributions -the vandalism began on July 24 2013, and he was blocked later that day. The contributions he made prior to that date were all constructive to the ROBLOX Wikia.

I don't know where you're getting the idea that he was vandalizing for a year prior to being blocked.