Ok, check this out, I'm down in the sewer killing stuff, and I meet a shady-looking character
here is the chat log of what followed:
Removed as a spoiler
I feel I have made the point.
This is a problem I have seen in many quests. If an NPC gives you a quest to find (w), their response to the question "Where can I find (w)?" should be "(w) is an (x) in the (y) area of (z)."