Aaah OK, ThemeHouse wrote that one. They're a good, stable company, one of the better ones out there. I haven't used their add-on, but used a similar one to ignore forums. I am actually working with a newly released theme of theirs (UI.X 2) for another couple of forums that will eventually be upgrading to XenForo 2.0.
There is a tip I can pass along, though. What if you only frequent maybe half a dozen forums, and don't want to see the rest for most of the time? What you do is click on "Watch Forum," at the top of each forum's thread listing page.
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Then, to view only your chosen watched forums, you click "Watched Forums" (or better yet, bookmark it):
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That gives you a list of favorite forums without having to see the rest.