first off, my thoughts and prayers go out to those who were affected by the earthquake and tsunami. as someone once put it "even if you do not believe in religion or god(s), it's still ok to pray, hope and wish."
secondly, while browsing the official wow forums i came across this post. personally i feel that the idea, regardless if it the poster was serious about it or not, is in poor taste.
some may feel that it's an appropriate way to help the victims and their friends/families (and 'hey, why not receive a companion pet while at it too, right?'), but this is a vastly different situation than say to a donation to the make a wish foundation by blizzard from the profits generated by the PetStore.
unlike the make a wish foundation who's purpose and intent is to help children with a terminal illness to live their hopes and dreams in a light-hearted fashion, the disaster in japan has more serious and somber undertones. fundraisers for japan deserve a solemn approach out of respect for their dire and immediate need.
that isn't to say the make a wish foundation isn't serious about easing the pain and suffering of children, or that the situation the kids face is something to brush off or laugh about. it's just that the two situations really don't compare.
those willing and wishing to aid those affected should instead direct their attention to organizations like the red cross and other similar non-governmental organizations. for a major disaster situation like this, if you are seeking to help, do so with the purest intentions of helping. not for the sake or even secondary intent of receiving something from it (such as a non-combat pet). unlike donating money to see a child's dream be lived out, this isn't a whimsical and cherry occurrence. the lives of thousands are at stake.
just my two cents.