I have a question which is very similar to an old question which has no answer (as of June 7, 2012).
The old question (Querying remote system via WMI returns access denied) includes some of the detail which I would include in my own question, but if I post my own question I would add additional detail (e.g., specific C# code to show what I am trying to do). While the additional detail might help to narrow down the cause of the problem, if it were added to the original question it might change the OP's intent (if his scenario was different from my, though with possibly the same root cause).
But since the original question has no answer yet, I am kind of thinking that it might be better for me to "hijack" the post, heavily edit the original question, get it bumped to the front page and try to get an answer. If instead I simply post a new question, it seems likely that the old, dead question will never be answered anyway.
I know my "meta" question here is similar to etiquette: how to “bump” a question that's the same as the one you wanted to ask? and Should I ask a new question, or edit the existing?. But the difference I see is that here I am asking about a new or transformed question which is enough different in the level of detail to possibly change the final answer for what appears to be a dead question.
Any guidelines for this sort of situation?