What's wrong with inquiring about payment method?

I am asking a mod to review this thread:
http://forums.digitalpoint.com/showthread.php?t=639686

In that thread, I asked which payment method will the seller accept.
(I asked politely)

But the seller replied "go to hell and wait".
The seller also accused me of sending fake bids to his email.
(I don't even know his email)

Those posts are already deleted by an unknown mod.

And now... I received a warning for my last post in that thread.
http://forums.digitalpoint.com/showpost.php?p=5989260&postcount=11
the warning said "Inappropriate Post/Thread".

My question ("which payment method") is relevant to the sales thread; is it wrong to ask such question??

Why were my posts deleted; and why did I receive an infraction?

I seek justice.