Well I find the huge number of very old apparently dead threads rather overwhelming. What are your cull criteria ?
Also what is the organising priniciple behind the order of thread topics - is it the most recently posted on nearest the top, and you just have a lot of stickies at the top, or is it something else ?
I post on a forum on a completely different topic, non-fundamentalist Christian board, and they put certian topics like abortion and homosexuality into a separate 'dead horses' section of the board. People can still post on them if they want to, but if people starting getting to those topics they are directed to take it up on the relevant dead horses thread. It stops the boards getting cluttered with the same old arguments - typical of christian boards - again and again. I wonder if it might work here, for certain recurring topics on which there is little shift - such as arguments about which style is best.
I know people aren't supposed to get into those kind of arguments here - but they do, you can see it emerging on Crablord's sparring thread on Martial Arts talk. It might the admins job easier, giving folks a place to vent so it doesn't come up elsewhere. I am sure you are familiar with other topics that come up regularly and just go round and round in circles.
Anyway, just my two-penny worth - feel free to ignore it - as I am sure you will if you want to
[ETA They also do a rather neat rule summary
10Cs - Hell being the board where you can rant and sort out your personal differences, again makes it easier to stop rows derailing threads on the main part of the boards.]