User talk:31.171.108.15

January 2016
Hello, I'm Mattythewhite. I noticed that you made a change to an article, Jan Kirchhoff, but you didn't provide a reliable source. It's been removed and archived in the page history for now, but if you'd like to include a citation and re-add it, please do so! If you need guidance on referencing, please see the referencing for beginners tutorial, or if you think I made a mistake, you can leave me a message on my talk page. Thank you. Mattythewhite (talk) 15:04, 26 January 2016 (UTC)
 * If this is a shared IP address, and you did not make the edits, consider creating an account for yourself so you can avoid further irrelevant notices.

December 2022
Hello. This is a message to let you know that one or more of your recent contributions, such as the edit(s) you made to Tourism on the Moon, did not appear to be constructive and have been reverted. Please take some time to familiarise yourself with our policies and guidelines. You can find information about these at our welcome page which also provides further information about contributing constructively to this encyclopedia. If you only meant to make test edits, please use the sandbox for that. If you think I made a mistake, or if you have any questions, you may leave a message on my talk page. Thank you. Fragrant Peony (talk) 09:24, 19 December 2022 (UTC)

Please do not remove content or templates from pages on Wikipedia, as you did to Presidential system, without giving a valid reason for the removal in the edit summary. Your content removal does not appear to be constructive and has been reverted. If you only meant to make a test edit, please use the sandbox for that. Thank you. David Biddulph (talk) 13:05, 19 December 2022 (UTC)