This question got me thinking. There have been cases, very occasionally, where upon reading the question I get the sense that the asker is looking to do something evil: spam, black-hat hacking, mass email scraping, rootkits and so on.
Judging by the disparity in the ones I'm seeing and the ones I was able to find in search, usually these questions get closed and deleted or go unanswered. Some are answered, though.
I'm curious as to the community's thoughts -- is it our job to be judging askers on their perceived intent? Should we flag for this if we have sufficiently strong evidence the answer will clearly be used for evil purposes, if it's otherwise an on-topic Stack Overflow question?
(It's not as clear-cut as you might think -- as an security researcher I blur this line all the time, and thus have strong feelings about the ethical responsibilities of people who play with that particular fire. There have been times when I've written up a full, complete, multi-paragraph answer, read the question through a few more times, sighed, and deleted the whole thing because I didn't like what I might be helping someone do. I'm curious if anyone else has had this experience, and what they've done: sometimes I've left a comment, but mostly I just move on.)