That`s because we introduced a new moderator feature 2 weeks ago that allows moderators to "bury" threads. Typically users like you have been posting "." on threads that nobody cares about only to push them up to the top again, other threads that we sometimes burry is when focus on subject is lost and people are comparing e-peen with eachother.
Reply from Joakim Lund Rangel is flagged as not relevant.
You've basically just taken all the fun out of forums in one fell swoop.