I don't think the essay is offensive or should be deleted, but I don't think it's true

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"Onwiki" was definitely a construction that I heard before 2011. Andre🚐 03:33, 4 February 2023 (UTC)Reply

Read more closely: the essay explicitly says that it applies only to the specific form wiki (alone, as a noun, whether capitalized or not, so that phrases such as the wiki software don't qualify). EEng 04:12, 4 February 2023 (UTC)Reply