if you admin a magazine you can choose relevant tags for it that can actually bring in posts from the rest of fedi that use those same tags, so they will appear on the microblog tab on kbin ~ for example on /m/food there are a list of tags including #dinner or #cooking, and you can see posts from mastodon etc in the microblog tab because they have those tags too
RoboRay
tjhart85
Cavalarrr