User talk:67.188.199.209

December 2014
Hello, I'm Materialscientist. I wanted to let you know that I undid one of your recent contributions —the one you made with this edit to User:Ethylmethanesulfonate/sandbox— because it didn’t appear constructive to me. If you think I made a mistake, or if you have any questions, you can leave me a message on my talk page. Thanks. Materialscientist (talk) 06:54, 12 December 2014 (UTC)

January 2019
Please refrain from making unconstructive edits to Wikipedia, as you did at Katt Williams. Your edits appear to constitute vandalism and have been reverted. If you would like to experiment, please use the sandbox. Repeated vandalism may result in the loss of editing privileges. Thank you. –  Broccoli  &#38; Coffee (Oh hai) 05:02, 20 January 2019 (UTC)