post's a few years old are not relevent nowadays as the game has moved on so much over the years but you would have them archived for posterity.
I like your idea, hyster, but I would have to disagree with your thought that "post's a few years old are not relevent nowadays".....
I would think this would be true for some specific forums only, like the O'Club, the General Forum, special events forums, squadron forums.......
but the main stay forums like the Techincal Support forum, Hardware & Software forum, The Help & Training forum, The Bug Report Forum, The Aircraft & Vehicles forum.....these forums are very relevant regardless how old the posts maybe....
but still, your idea has merit, although it also has to involve a load of extra work for someone to do the splitting & archiving of the forums, etc...... not sure it would be worth the effort to go through it all....