I'm posting because I've kind of been involved in the 'war' you link to.
According to what I know about the practices of SE, is that the questions and answers rule. I noticed the question was changed so much that it 1) completely changed from it's original scope, and 2) was now completely out of scope of the question we like to have here.
Feeling that it was not correct, I felt that the correct thing to do was to roll back the edit and notify the OP via comment of why the rollback was done; it was all done under good faith that the OP of the question was not aware of this kind of 'rule'.
I was about to flag for mod intervention after the OP changed the focus of the question again when you rolled back the edit again.
This is what happened on my end, and from my point of view.
I'm not a moderator here, just a enthusiast who likes [gamedev.se].
I'm aware that I don't have the authority to tell users what to do, but I'm also aware that there are tools offered to the community to help maintain the philosophy of the site. I used the tools offered, up to a point that I felt it was time to leave the situation into a moderator's hands.
I'm well aware that I'm not perfect (and some might find me annoying). Have I done something wrong in this situation? If that's the case, I strive in my life to improve my behaviour, so I'd like feedback.
StackExchange offers a great way to reward users with the Reputation system. Unfortunately, however, this system only applies to Questions and Answers, not to other community maintenance features, so one is kind of lost when trying to know if he does well or not (with some parts of the moderation features).