These stats are really disconcerting.
The priority of the core devs should be to fix the malleability issue once and for all. It shouldn't be a problem to get a majority of the network to agree to some patch. I think everyone would agree that it would be good for Bitcoin to just disallow transaction malleability.

Also it would solve the problems with mtgox withdrawals. Of course, in principle, it is a bug in the mtgox wallet. But this shouldn't be the time to accuse each other. Just solve the issue in the protocol and everyone will be fine and we would all have a better Bitcoin after all this mess.