You shouldn’t. The only places I’ve seen them shown is at Github. Slack is internal communication between Brave staff and thus isn’t open to the public. As Chocoholic said, I’d be curious to see where you’re claiming that you see the links here at the forum?
I tried doing a quick search now and just saw one where a person said they had issues with Slack on Brave and then the others were all part of Github discussion, such as at https://github.com/brave/brave-browser/issues/22921 where it says:
Community thread:
How to hide brave stats in android
Internal Slack convo:
https://bravesoftware.slack.com/archives/C0816QH3R/p1651262346660889