Indeed, your thread wasn't deleted, but anything that's inactive for more than 30 or 45 days [i forget which] ceases to show up in the forum, but it'll remain available via the often clumsy search feature. If you take a look around, you'll notice some of the more inactive forums on the boards, might have no threads showing, even tho that forum might show as having "new posts" simply because its been awhile since the thread was active.

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