I'd be satisfied with an "automatic lock" on any message that's over 6 weeks old, to prevent "stupidity bumps".
Otherwise, I'd say that however the good folks at HTC want to do it is fine with me...
<S>
I like the idea, but either the time frame needs to longer (one calandar year) and the folks who scream "use the search option" for a thread from 7 years ago need to let it go. Non-bumpable after a calendar year is about right, then if need be, and the topic is still viable, start a new one.
On last year's "First Annual Aces High Recipe Swap" thread, folks kept making use of and posting new recipies for over 8 months.
We'll start another one in July...One calandar year from the first one. (You guys owe me a gym membership for the weight gained from the first one!

) Those BBQ, Mexican, grilling, & Asian recipies were AWESOME!
ROX