StackExchange is all about answering questions and spreading knowledge. However there comes a point where particular types of questions are getting asked repeatedly, despite being relatively easy to look up, that one wonders whether any actual learning is going on. What can or should we be doing about this beyond mildly prodding the questioner?
Obviously this thought was brought on by the current stream of "What's the difference?" questions, but it could apply to many other types of question. I've no objection to answering them, but I do begin to wonder whether I ought to be telling the questioner how to find out for themselves rather than let them continue with the lazy option.