Good points!
Wikipedia says that Charlie's task in the Order was to rally support abroad. I have to admit that covers some of my objections, even if it isn't discussed very much.
I don't think it was ever discussed whether Durmstrang was compromised. But I just looked them up on harrypotter.wikia and it says they were known for teaching the Dark Arts, so I guess they could have been. As for their headmaster-- he wasn't "compromised" in the way you mean. He betrayed the Death Eaters during the previous war and was eventually killed by them during this one. Unfortunately it looks like he was a little too cowardly and self-serving to ever work with the likes of the Order, either.
Wikipedia says that Charlie's task in the Order was to rally support abroad. I have to admit that covers some of my objections, even if it isn't discussed very much.
I don't think it was ever discussed whether Durmstrang was compromised. But I just looked them up on harrypotter.wikia and it says they were known for teaching the Dark Arts, so I guess they could have been. As for their headmaster-- he wasn't "compromised" in the way you mean. He betrayed the Death Eaters during the previous war and was eventually killed by them during this one. Unfortunately it looks like he was a little too cowardly and self-serving to ever work with the likes of the Order, either.