To LuYangShih:
Simply detecting as evil in no way implies that they have done any great evil. As was said before, and what has in no way been addressed, what if it was simply miserly, greedy behavior? The point of Detect Evil is to make you aware of those that might be deceiving you, to know quickly whom you can likely trust. It’s not a license to kill, nowhere in the PHB or in any of the material is the Detect Evil ability treated this way (quite the opposite as I recall, there was a letter to The Sage on this issue. Does anyone know where it may be found?). Your concept of “peering” into someone’s soul seems to be quite lacking since you aren’t willing to conceive of different depths of evil. It’s not an “off/on” switch. A good person would see all creatures worthy of redemption. Especially a group of kobolds that hasn’t brought any harm to anyone, this isn’t a “dangerous warren of evil humanoids”, and it’s a bunch of sad and pitiful souls trying to survive in an awful situation. If a paladin doesn’t have pity and mercy, what’s exactly is he fighting for? It’s not an issue of accepting evil or forgiving it, it’s an issue of seeking its redemption. In your world-view it seems that once someone is evil they can never have a chance to change their ways, you’d see them dead before they had an opportunity to change.
You claim that your methods would protect the innocent… but what kind of world would the innocent inherit? Might want to take a look at George Orwell’s 1984 to see what blind oppression of those you don’t deem “worthy” leads to. All tyrants have justifications and rationalizations for their action.
Kershek
Since when is it evil to do things for your own benefit? Pretty much anything we do is for our own benefit. It’s how far you go with that, that determines evil. If you’re willing to sacrifice your free time for some personal goal, is that evil? Of course if you’re willing to sacrifice the town’s people for your own goals, that is evil. I don’t see the kobold’s in this situation making an evil decision… do you? Seems that it is purely based on your assumption of evil, not on any actual facts or actions.
Yes, the kobolds MIGHT one day do evil… yes, so might your paladin, so might the guy up the street, so might anyone. Free will is what makes good. Choosing to do the right thing, not doing it because you “have” to.
You say “If he spent the time to detect someone as evil, he should take it upon himself to deal with them one way or another.” Why does that mean killing someone if they detect evil in an environment that has no jurisdiction? Sounds like road-warrior style tyranny…