OK then I can see what's happening and there needs to be filtering added (and not just by magazine as it allows now).
I think it's putting into random microblog posts by anyone that any user followed. In fact, you can confirm it easily by scrolling down on my one while not logged in. I mentioned I only followed elonjet. And sure enough there's some posts by elonjet a bit further down, but otherwise it's just mastadon users tagging groups or kbin users making a mistake.