Many individual customers you might be able to blame, but as a group, they are best considered as simply a Force of Nature with no capacity to accept responsibi

Many individual customers you might be able to blame, but as a group, they are best considered as simply a Force of Nature with no capacity to accept responsibility. Many of them can't upgrade because their on old machines with old OSs, or because they're on a work machine and their company has policies about these things (which can probably also be traced back to Microsoft), or because they are just plain technically incompetent (and while one may decide to blame them for that, it's not fair to double-count when it makes them incapable of choosing to not use IE6, or 7, or 8). And those who can and do upgrade have little capacity to make any different in the rest of this enormous group. Since "consumers" as an aggregate are therefore incapable of fixing the problem, it makes little sense to lay all the blame on them. Microsoft, on the other hand, is in a position to fix everything for the consumers, and they so far choose not to.