@Andjhostet The microblog section of the /m/Random magazine is where anything without a hashtag gets filtered into.
Kbin handles Mastodon data kinda oddly. Basically, each Magazine on Kbin doubles as a hashtag filter for Mastodon posts. So /m/Tech will show any Mastodon posts with the #tech hashtag in it. And if you post to the /m/Tech microblog section from Kbin, that will basically add a "hidden" #tech hashtag to your Mastodon post (so I believe it'll still show up for Mastodon users who search for the #tech hashtag, since it's in the metadata of the post).
This basically makes /m/Random's microblog section the "Global" Mastodon feed for our instance. Because of that, it's basically everything all dumped into one place. Including the porn.
@gentleman Of course! The Kbin UI for Mastodon definitely isn't super intuitive yet. Hopefully that process will improve a bit once some of the upcoming Kbin updates get released.