I will be adding more targets for love potion in the future updates. No one in Bareshade is safe.
1) Right now you can't lower the naughty fame, you could do that in the Bareshade area, but for now in the ruins you can only make it higher. It will change in the future updates most likely.
2) Thanks. A typo, but in a variable which made the game crashing.
3) Before the recent update I made the chance of finding items higher. But like you said, balance... those things probably will change a lot of times. Plus maybe I'll add a possibility to dom the guards ;p