Nope, like wiki style citations to external links. Maybe it's just some superscr... | Hacker News

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		chaorace on June 9, 2020 \| parent \| context \| favorite \| on: A List of Hacker News's Undocumented Features and ... Nope, like wiki style citations to external links. Maybe it's just some superscript trickery, but I've seen it from multiple people, so I assumed it's a hidden feature.

snazz on June 9, 2020 [–]

I think it's Unicode superscript characters¹. Does that look like what you've seen?

1: https://en.wikipedia.org/wiki/Unicode_subscripts_and_supersc...

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