just a little note about a problem i came across while trying to fix a friends xf2.1.3 forum. with the addon being active it causes a permission problem for pretty much everything once a new user signs up (at least the automated way with with email confirmation). as soon as the user confirms his email he is greeted by a 'oops, there is a problem, you don't have permission to view....' when he goes back into the forum for threads, posts, pm's. only way to solve that was to manually rebuild the user cache in tools (or i guess to set up a cron job to do so). as soon as the addon is disabled the problem is fixed and everything is back to normal. it seems to do that even with all addons disabled and only [TH] Indicate Threads with Staff Replies active. it may needs some looking into at some point or an explanation what else should be tweaked in order to avoid this error.
cheers, L