I don't think most people understand that although '100k+ sites are infected', the actual malware code runs on the visitors (our) machines, the servers themselves are fine !
I read the news yesterday and was 'yeah, that's too bad', but only later did it dawn on me that I'm the one that's potentially going to have to deal with the consequences.
This needs to be mitigated client side, not rely on the good will of the administrators.