I decided to finally learn SQL for this project (specifically
SQLite, which is simpler and much handier for this relatively small site than a standalone giant like MySQL). Despite being a slightly simplified implementation of SQL, it's still a fairly complicated beast, and I've been frustrating myself with how slowly I'm learning it -- I find my eyes glazing over when I see the preponderance of all-caps and no brackets! Ugh. Will hopefully be worth it when I get done though -- the final product will (realistically) never have to worry about scaling again, in addition to being more efficient and allowing for some neat statistical displays.
I'll also be taking a page out of Bale's UR and having two scripts -- the basic script which simply parses your kmails, and a relay script for adding URL information / descriptions / SvS / etc. There will be no more kmailing yourself with Registry 2.0.
Testing and prototyping is coming along, but I certainly still haven't reached the halfway mark. Will keep you posted.