I wonder why sentences like this are considered a question?

[Cyclonus]

It's not a question, it's a statement. You are announcing to the world that this is what you wonder. And yet you still feel compelled to stick a question mark on the end like the sheep you are.

 

[lolnah]

They aren't, and you shouldn't.

 

[augment]

Are you talking about the rising terminal noise that idiots from the west coast make whenever they open their pie holes.

 

[Character from a movie]

Aren't they called rethorical questions?

 

[Lucky Jim]

You're thinking of loaded questions, a complex question that contains an assertion. Compare this to Betteridge's Law of Headlines, if an article title is a question, the answer is no.