The only thing would be the mods locking the thread; at that point, you can't edit or quote any of the posts, which means you loose all the link meat-data (happened to me in MitD thread 3). But yes, lack of updates for six weeks would not automatically lock the thread. Not that I expect it to happen to this thread.
[Not-a-mod]Probably not. But all Phantasm needs to do is PM a mod if the thread falls into a necromancy-worthy lull. That's what I was told to do if something like that happened to the MitD thread. The mods then would bump it themselves.
Grey Wolf