> This trend of running straight to social news sites (e.g. HN) whenever something goes wrong is very strange
This seems more general than just when things go wrong. I've noticed a lot of posts on Reddit in /r/math and /r/physics from college students asking for advice on what order to take classes, for example. A student might state he is a math major, and want to know if he should take linear algebra or real analysis first. Typically, he omits to state what school he attends, or what kind of math he is interested in.
These questions puzzle me, because the answer to this kind of question depends on details of the school's math curriculum, and vary from school to school. For instance, at some schools linear algebra is the first "proofs" course, and typically should be taken after freshman calculus as a transition to higher math.
At other schools there is a separate course specifically on proofs and mathematical reason designed to prepare students to transition from the practical oriented calculus courses to the theory oriented "real" math classes. At such a school, the order of linear algebra and real analysis is probably best determined by what courses have which as prerequisites and what the student is interested in.
I would expect the obvious thing to do when wondering what order to take courses in would be to (1) check the requirements for your degree--there should be specific courses you have to take so you need to make sure you don't do anything to screw taking those, (2) work out from that and from the prerequisites from those courses any constraints on when you must take specific courses, (3) look at examples your school gives of typical schedules for students pursuing that degree, and (4) TALK TO YOUR ADVISOR--I assume schools still assign to each student an advisor in their major to give them guidance on course selection and such.
Similarly, people will post saying they are taking a course in X next term, and would like to get a head start--what book should they read? Again, the often don't tell us the school so we can go look up the course and try to figure out what level it is at. They don't tell us what the textbook is so we can pick something that fits in well with that.
It apparently never occurs to them to ask their professor what would be a good book, or to ask older students who have already taken the class, or to go to the library and spend an afternoon looking at a few books on the subject to find one on their own.