It is just another Muppet from M. They do that to beef up their CV
"Look future boss, I have this cool blog where I talk cool things
about Java", and they do that to make advertising money.

Imagine you chose programming as your major because you think you can
make much money in programming. Imagine you have no talent and no
interest in programming, software or CS at all. Imagine you cheated
your way through university, buying exam results, bribing, paying
others to do your homework, or found gullible people on Usenet doing
it for you, etc. Imagine you get some degree and then you figure out
that you are not the only one looking for a job, and that even the
most desperate software company does some kind of screening before
hiring. Even at their "just walk in" events. And they don't hire you.
Imagine you turn to this counterfeit "Java Interview Question"
collections you find all over the web, and imagine you still can't
manage to appear knowledgeable after memorizing half of them. Things
like talking about Swing*s* give it away. You find this counterfeit
"Tips for getting hired and making lots of $$$ in the Web 2.0 age" on
the web. Imagine it says blogging is the way to impress. You have
cheated all your way up to this point. What at this point prevents you
from setting up a fake blog with stolen contents? Nothing.