Not very easily, the point that was being made about MOND before the trolling started was that, like Climate Change, there's nothing essentially wrong with challenging those established beliefs with a different interpretation of the observable evidence, but that evidence has to be subjected to the same rigorous testing as the data was originally interpreted under. In fact, the question as to whether MOND was viable or not was actually totally irrelevant, what was important was accepting that alternate theories existed and being prepared, if data is supplied, to test it with an open mind. The results should speak for themselves, in the case of Global Warming, and MOND that evidence has yet to disprove the mainstream theory, and may never do so, but that doesn't remove the fact that the mainstream interpretation of the data is still theory and subject to the same rules. If science closes it's mind to that, or even the possibility that there may even be a third option that hasn't been considered yet, it starts the move from Science to Religion.
Edit: In fact, at this moment in time, I'm watching a fascinating episode of Horizon titled 'What Happened before the Big Bang?', and whilst the contents would be more relevant to another thread, it's an absolutely wonderful example of ideas that challenge the established 'norms' regarding something that is regarded as fact by many scientists. Three theories, at least two of them are wrong, but it's going to be interesting to discover whether we will even ever be able to answer the question.