So I'm not going to copy and paste the curse content, as I believe most everyone here has read it or can at any point read it again. I've been looking over it for a number of days, and there is a big problem I see: From a position of usefulness, not even meta-gaming, Why would anyone ever pick anything except the haunted curse.
The other curses are neat, but not particularly useful. Many of them are totally DM dependent for if they even come into effect. Deaf and blind operate basically like daredevil; "I was born blind, but through some fantastic circumstances, I can now operate like a slightly strange normal person". Great for flavor but like I said not particularly useful. Same for lame. Buy a bag of holding and voila, no more encumbrance. And tongues will only ever be useful if the DM make languages a focus point.
Haunted on the other hand allows the Oracle to dip into arcane casting without even using extra spell slots. And for what detriment? takes a full round to draw things. Ok, most divine spells don't have material components, so all that means is that I can't draw a weapon and attack the same round. Shouldn't matter for a caster. It might make stealth a bit harder as clanging bells and books falling might occur, but at least the spells you get are worth it.
How can we make these better? And by better I mean, more balanced while still being flavorful and fun.