We're a little confused by this. I'm using the Restrict by Tag feature to assign grouped members to certain sub-categories in a main Projects category, and those discussions are set as viewable by everyone, as desired -- View discussions: Everyone. . But I would have thought that status would still allow those discussions to appear in the main lists.
I like the restrict by tag feature, but it all seems to be missing a mechanism tied to the View discussions field if the value is set as Everyone. If everyone can view discussions there, then everyone should see the discussion activity in the main lists too. But if the value is just Members, or any specific group, that's when it would be restricted to the categorical view only, ideally speaking.