The former book-keeper for Skully, the futuristic motorcycle helmet maker, filed a lawsuit this week claiming the company squandered $2.5 million on exotic cars and lap dances, casting doubt on Silicon Valley claims that crowd-funding would bury Wall Street. Skully was the 2013 brainchild of the CEO Marcus Weller and his co-founder/brother Mitch Weller, and wanted to produce motorcycle helmets with digital heads-up display visors that could show speed, RPM, GPS directions and a rearview camera, in the style made famous by Stark Industries in the Ironman movies. Forming what was supposed to be a Silicon Valley tech startup, Skully...