There is something I have seen in both stackoverflow and askubuntu. That is happening way more at stackoverflow but even at AskUbuntu.
There are questions with minus ratings and negative votes (for instance -1 or -2) aimed towards simple or obvious questions. As far as I know voting down is used to indicate a question which lacks quality. As Privileges-Vote Down states:
When should I vote down?
Use your downvotes whenever you encounter an egregiously sloppy, no-effort-expended post, or an answer that is clearly and perhaps dangerously incorrect.
I do not think that questions that expect an obvious answer should be voted down. Some examples with minus votes are:
Are these questions dangerously incorrect? Or do they show no-effort?
I find all of them correct, even if most of them expect an obvious answer. For example, it may seem quite obvious how to dual boot Ubuntu and Windows7, and sometimes how to install a program from tarball is three simple steps.
But that is why these users created their accounts and posted a question expected to get an answer from us.
I mean, we have all have had to start from somewhere. A lot of us have had a "Is it plugged in" moment. And programmer start learning a language by writing their first "Hello World!" program.
So why do other experienced users tend to downvote these types of questions like the above ones?
Why don't we try to be modest and help even the new users. Is it hard?