What is this linking issue Miller is mentioning?

[DPRK]

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New Rule about Thread Titles when Pitting Other Posters

Discourse has a feature where if you put a link to another thread into a post, it creates a back-link in the linked thread. Which has caused a minor issue with the Pit forum when someone Pits another poster, and the thread title contains a personal insult: the insulting thread title appears in the linked thread, effectively subverting the rule against insulting posters outside of the Pit. As there is no ready technical solution to this, we’re implementing a new rule regarding Pit threads that …

At the end of that post, there will be a link “back” to this post