If it's a statement don't use a question mark?

[bitcoinminer]

Icanhazcheeseburger?

Yes you can?

It looks like the admins consider this offtopic?  Posting threads as questions is not offtopic though? This is strange?

[Phinnaeus Gage]

Clearly, this is a prejudice thread, for nobody, and I mean nobody has yet mentioned the exclamation point, let alone use them useless bastards? Are you not ashame.

You, guys, think long and hard about the above while I cook dinner!

What should we do about the exclamation point!

We'll think about it while you cook dinner?

Do you think that's a good idea;

Speaking of colons, did you check https://bitcointalk.org/index.php?topic=339800.0 out:

[Foxpup]

My crazy theory? <--- Not a question

Actually, it is three questions:

My crazy theory? Or is it someone else's crazy theory that the minddrones implanted into my brain?
My crazy theory? Answer is almost always "Yes, your theory is crazy", except where the question is asked ironically.
My crazy theory? No, the correct term is hypothesis.

So what he really wants to know is, "Are the minddrones implanting theories or hypotheses into my brain and are they crazy?" Though when you put it like that, the question sort of answers itself.