It's true that many posts will remain relevant for years, but the Sudoku World does move on. And some of us might even be somewhat embarrassed by our earlier efforts.
The main aspect of this is the logistics of maintaining a record of the posts of an increasing membership and those members trying to find posts and information on the topics that interest them. We mostly haven't got time to read every post that was ever posted, and often we can't tell just from the title whether a given post has the stuff we are interested in.
We can limit ourselves to only looking at new posts, but we would miss out if we couild not get on the Net for a couple of weeks.
Really I'm asking what policy, proceedures & practices we have to manage and organise this ever-expanding library. Do members have input into this process?