After I recently installed an invisionboard on my computer, I just was suprised of the huge MySQL Database - about 20MB - although my Forum was nearly empty. How huge the Database of the K-Lite Forum must be? It has I think an estimately nearly 10.000 posts. Might be some hundreds of MB's.
And I also asked myself, if the Forum is hosted on a strange server or on a computer of one of the admins, which is connected with 24/7 to the internet?