What's truly questionable is the responses I have received from MTGOX. The image I posted shows the response of a support member who can't spell or form his sentences properly. He labeled the ticket as "resolved" as soon as he responded, which should've been my prerogative considering they have a check box for "check this box to label this request as resolved".

My second correspondence was with Danny. He was more amiable and he said, I quote,
"Thank you for the email. We have already mentioned on the withdrawals page that our site will not work with the satoshidice and we will not be able to locate this transfer. Please contact satoshidice and see if they can help you with this."
I responded that there is no such "warning" or even any literal mention of satoshidice or even just having different send/receive addresses on the withdrawal page.

My opinion of MTGOX has changed drastically..