From a certain perspective, Twitter is an accomplice to fraud by providing the platform and the access to the fraudsters (although I'm fuzzy on whether knowledge of one's aiding of a crime is necessary for an entity to be legally considered an accomplice - probably is).
And yes, the charge count is insane but the US loves holding a bit of life-ruining theater when they catch hackers threatening commercial interests. e.g. Aaron Swartz's conviction: https://en.wikipedia.org/wiki/Aaron_Swartz#Arrest_and_prosec...