If he's a fish in a pond full of other fish that bite each other, and looks like the other fish that bite each other it is reasonable to assume he is one of said fish until shown otherwise. Induction, while not logically sound, is the basis of much of science and should not be ignored. Especially since we've been given reason to doubt it, and there are other instances of this experiment. While I'm not saying he's guilty, I am saying the results should be ignored.
Scientists for the most part don't care about this dishonesty so long as their passion, science, is advanced. Like Adam Smith, this seems to them the best, if uncomfortably true, route to do so - rough competition. In general, they don't care that their "money" is coming from an expectation to tell us the "Truth". They care about their own goals, passions, and aspirations. So while you find lots of accusations, it really takes a long passionate and determined fight to make anything happen about it, let alone attempt to "prove" it. Or simply time/history, in the case of the notable examples above (and more not included.)