Fantastic, works as advertised, even on my 1.4.2 install. The only downside is that it doesn't affect Tapatalk; threads are ignored on the desktop, as expected, but you'll still see them in Tapatalk. Such is life...
Installed in my board, (actually XF version 1.4.5) working perfect, addon very useful, great developer, great support, easy to set up everything perfect, 100% recommended. Thank you Nobita!