You can mute a category if you don’t want to see it.
I’ve relocated half a dozen or more of these threads to the SketchUp for Schools category today. Of course the people doing the posting don’t care what category they put it in so they take the first on the list.
IMO, this would not happen as much if the “Categories” page was made the default landing page.
I know this can be done, as other Discourse forums have this set.