Stack Overflow gets so many thousands of questions, they have very little patience for people who post and don't take the time to see if their question is on topic.
That is one reason I think that a group of smaller sites would be a good idea. But I think the giant SO site is tied to SE's business model. So that is unlikely to change in any substantial way.
@poka.nandor Ah. Well, imagine you are someone who regularly answers SO question. Let's say you are a high-rep answerer. And you presumably have your favorite tags.
Now, some tags on SO receive floods of questions every day. And many of them are poorly written, maybe unintelligible, maybe the poster isn't a native speaker.
@FaheemMitha I teach univ. fresh men and correct test I see alot of BS on their test and yes patiente wear thin yet I don't give them low scores unless necessary