1) It isn't on the first page chronologically with other things that were last posted to in the last 5 hours.
2) When I search for it, it comes up, and is datestamped as being "Posted: a long time ago".
But when I click through either here or on search, it shows it as 5 hours old.
The thread probably has a glitched time recording, perhaps 0 so then it's automatically interpreted as the equivalent of a 0 date in whichever time system the game is using.