I also discussed this before: http://meta.tex.stackexchange.com/questions/4267/our-do-it-for-me-and-draw-it-for-me-comments-dont-reflect-our-hypocrisy-can-th and I was under the impression that it was settled. But things have changed since then. Our recent residents are getting really hostile more frequently. There is no other way of putting it. Especially in the chat room I'm witnessing a lot of ah, look at this idiot type of comments on questions and especially drawing attention to a flaming commentary to show off how right they are. And I am actually waiting for the 100th monkey1 to pick up this nasty behavior and change the color of the spirit here which is happening for some time now.
Maybe we should remind ourselves that this is only TeX we are dealing with. An obscure typesetting system for mostly academic purposes, not a cure for cancer. It is fun and beautiful nothing else. So non-TeX people have all the rights not knowing it. And it looks ridiculous and funny when users occasionally come to this site to ask something and see this small print popping under questions with serious attitude telling to do yada yada yada. There is a difference between letting someone know about the style and registering them to your own club.
I don't find this pretentious oh let's teach him how to fish attitude comfortable. Because if you really want to teach (I don't know where this self-confidence comes from too) you try to be nice, you don't prove how correct you are. If there is a duplicate close it. If there is none let them be. We have more than enough means to deal with unanswered questions.
Housekeeping does not equate to repelling boring questions.
There will always be boring questions. But of course if you feel like TeX-SX is your daily dosage of SuDoKu and you don't like your fun being spoiled by users who are not supplying enough fun, then you get grumpy and belittle questions.
Being an old user or hi-rep doesn't give anyone the right to be the discipline police. Especially some users are quite annoying to be the first one to engage with some new users, piss them off right off the bat and move to the next question where they can fix lacking manners of another user with a hearty Welcome to TeX-SX and then following with here are the ways you fail: code blocks, thank yous, MWEs, usernames. I have been tangentially involved in some of those code block compositions. Nobody back then thought that it would be a tool for the etiquette police.
In the meantime, often times a potential answerer has to deal with a overzealous response of the OP leading to read my question properly type of response because someone pissed that user off before we can finish reading the question.