No worries, I understand as you do that it's hard to give advice to programmers of unknown competence without falling arwy of tending towards either "have you tried turning it on and off again?" or "have you noticed your (publically) cron-jobbed O(n^3) algorithm can be reduced to O(m+n)"? DIdn't mean to come off as concescending with the "you need more tests" comment, I make that observation in nearly every project I consult on.

I believe your business plan and architecture is inherently flawed due to the reasons of power user manipulation I've outlined, but I enjoy your site atm and respect the effort you put in to it. Thanks for your time in responding.