You can always bring an old post back to "new" by adding to it. This takes up less space on the webhost, not that space is a problem just trying to keep the board easy to maintain so I have more time to flow test
This also makes the board easier for everyone who visits this forum, average usage is around 150 hits a day to the forum for anyone who is interested. Somedays it spikes when it is discussed on other places on the web. I am able to track that through my webhost and can follow those referrals back to the origination site, which I find interesting. Its good to see members talking about this forum on other sites!