Easily fixable the first time Durmstrang gets mentioned in MoR in the presence of a Malfoy.
How about this?
In addition to being restricted to Pure-Bloods, Durmstrang has another distinction: its culture is absolutely Quidditch-mad. (Victor Krum is merely the most spectacular of its sports programme's many successes.) To the canon!Malfoys, this would only add to its attractions, but the more intelligent MoR!Malfoys realise that Quidditch is an asinine game. While association with the popular sport could be beneficial, it simply is not worth the drain on mind and spirit.
Update: This post has also been superseded - new comments belong in the latest thread.
The second thread has now also exceeded 500 comments, so after 42 chapters of MoR it's time for a new thread.
From the first thread: