I believe I have discovered a bug in the active topic notification system. When adding a topic to the notification list, the forum asks for an expiration date expressed in number of days, up to 365. The problem is that this date does not always seem to stick; sometimes the forum will reset that date to an earlier date without notifying the user. This is a problem because the notifications can expire well before the user thinks they should, and as a result, he/she may think that there are no new posts in a topic when in fact there are new posts but the user just isn't getting the emails to tell him/her this. For example, I rely on this system to notify me of new posts in the Elite League Limmie game and library threads in the RPF and RPR forums respectively. A couple of months ago, the notifications expired without me knowing about it, and as a result I fell several days behind. As a test, on July 25, 2011 at 10:48 pm EDT, I reset the notifications on both of those threads to expire in 365 days on July 24, 2012 at 10:48 pm EDT. Today I checked my watched topics list, and while the library thread still has the correct expiration date, the game thread now shows an expiration date of August 29 at 8:47 pm EDT. I did not reset it to that date, so the board must have done it on its own. If somebody could figure out what's going on and fix it, I'd appreciate it.