I recommend John Hempton's blog post on how badly people judge seeming madmen in the case the conventional view has only conventional-wisdom support. I also like how he explains his research and conclusions in general.

the gist:

In early June Carson Block and his firm Muddy Waters research published a report which made outrageous sounding allegations against Sino Forest - then a highly respected Canadian listed Chinese forestry company that had borrowed well over $2 billion to develop and expand forestry operations in China.

The base allegation in the report was that most the forests did not exist and by implication the (more than) $2 billion borrowed was stolen. Presumably many more shares have been sold too taking the total theft well above $2 billion.

I am obsessed about discovering the ways my positions can be wrong.

Dundee Securities was the most prominent Sino-supporter labeling Muddy Water's research a "pile of crap". Somewhat more considered sounding (but also flat wrong just more reasonable sounding) was Metal Augmentor who found Carson "loose with the facts and somewhat breathless". On the naive-sounding side was Susan Mallin whose complaint was that she had "never seen a research report written in this manner". More prominent people were fooled too.

The analysis of these people was staggeringly weak and self-referential. They judged Sino Forest against data provided by Sino Forest or people associated with Sino Forest. This is an elementary mistake in assessing fraud. To find fraud you need to be able to judge against things you are fairly sure are not fraudulent.

Everything the Carson Block doubters said sounded reasonable. Certainly more reasonable than Carson Block sounded because Carson Block held the radical position. Sounding reasonable however was wrong.

I think what is going on here is a general problem. When someone says something - anything - that is so far from the consensus as to sound outrageous then they will be considered mad, and sometimes they will be considered mad even after they are proven right.