a font that no one knows why it exists

[Benjamin Barrett]

Is this sentence strange?

"The notes are all computer-printed, but it's a custom font, not Wingdings or Dingbats or any other weird computer ding-dong font that no one knows even why it exists." (Cameron Edmondson, the time counter is goofy, so I can't give a time stamp)

The "it" next to the end seems odd, but I'm having trouble figuring out how else to construct the clause without replacing "that" with "and."

Found at https://screen.yahoo.com/broken-news-daily/secret-codes-hidden-college-library-233507140.html.

Benjamin Barrett
Formerly of Seattle, WA

Learn Ainu! https://sites.google.com/site/aynuitak1/videos

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The American Dialect Society - http://www.americandialect.org