Check out these three screen shots taken moments apart at about 5:55am local time (EDT) this morning (3/15/2014).
Note that, in EX1, the latest post in OT was made at 5:34pm yesterday afternoon.
Note that, in EX2, several threads were started in OT since then.
Note that, in EX3, a post has been added to the most recent of those threads which does not show up in EX2.
Not sure if it's a VB glitch, a Firefox glitch (running 27.0.1) or, something else.