When you share a baron link to a repl discourse try to make it a one box BUT it does not one box leaving a huge gap in the page with no link. When this happens it makes it very hard for normal users to view the link¹ and TL4 and staff can view the link relatively easly².
If we add
*.repl.it/* to the black list for one boxes (
onebox domains blacklist) this would lead to them not “being” one boxed and all users would be able to easily view the link
¹ All users can view the raw contents of any posts using the following link
² TL4 and staff can edit all posts so as an effect we can view the link that way.