>>1459127I found results on "t. knower" from as early as 2014.
https://archive.4plebs.org/_/search/text/t.%20knower/order/asc/page/2/At first I theorized that "knower" might have come from terms like "noticer" but that doesn't appear until 2017.
https://archive.4plebs.org/_/search/text/t.%20noticer/order/asc/It might not have come from anything at all and is just something anybody could come up with while making use of
>>1459170