I think some kind of colored or otherwise obvious notice about older posts is on ElectroMaster's plan of things to add eventually, but with the havok the latest software update has played on things it's definitely on the backburner =)
Yeah I'd imagine all this change would have taken a lot of stuffing around.
I definitly like the colour scheme idea though.
maybe the dates should be in red or something if they are more than a month old.
or the 'post reply' button red.
Old posts are good reading if its on a topic your after, some have useful info, but i would definitly like to be reminded if a post is 2 years old.
Like this one
:S