Via Crunchyroll, a translation of a 2chan chart which shows which kinds of otaku are the craziest and cause the most trouble.

In case you’re wondering about the “train” part that occupies the Michele Bachmann spot on the chart, it does not refer to various colloquial meanings of the word “train.” It means fans who like…trains.

You know, toot toots.

Just what is it that makes them so crazy? Known as tetsudo otaku, train fans have long been looked on with suspicion by the Ahakibara crowd — Irvine Welsh is universal, it seems — but a band of younger, more energetic trainspotters has revitalized the subculture: