And yet it still makes no sense to me. I just don't understand how a question mark adds a dramatic effect to a statement. Questions marks are used to signify a question. There are some statements that can possibly be ended with a question mark, but most of the ones I see make no sense with a question mark. The sentence you used, with the question mark at the end of it, makes it sound like you are asking me if question marks add a dramatic effect. If that's the message you're trying to relay, then it works, but I'm sure you weren't asking me. So, it makes no sense in your intended context.
I.E.: "You think I really care what you say?" This is technically a statement, but using the question mark can change the meaning, but only because it assumes there is a "do" in front of the sentence. To me, that isn't just an English class thing. It's just how it naturally makes sense to me.
But...we're getting far off topic of this thread. lol
Either way, I'm in no way trying to bash people. Just stating my confusion on trivial things.