Those two questions would most likely have been caught by the question quality filters on SO. They would have seen one of those red popups that asks them to improve their question. Rather than making an attempt to improve his questions, this user must have simply given up and asked here instead.
These filters are considered Big City solutions to a Big City problem. AFAIK, they're only used on the Trilogy (SO, SE and SU), where the big city problems are especially acute. Account blocks are effective, but only after the user has posted a couple of questions and used up some of the community's time in moderation effort. On a small site like Programmers we can afford that, but on Stack Overflow it is necessary to stop these kinds of questions before they ever get posted.
The percentage of first-time questions that get blocked in this way on SO is actually quite high. Unlike the Account Block mechanism, the Question Quality Filter is custom-tuned for each site, and putting it here wouldn't block that many questions anyway, as the only questions that we get that are like this seem to come from people who have gotten lost, or who have lost their privileges at Stack Overflow.