The site is a few weeks from it's 2 year anniversary, not because I plan to do much about that, but like in many other cases development adds a little to the database here and a little there, and eventually it needs an overhaul to remove redundancy and useless posts and columns.
Changing this much to the database will inevitably result in a lot of tweaking on most pages as well. You can rarely alter the foundation without affecting what's build on it.