Exactly. Other than the tight-knit tech circle referred by sites like TechCrunch, who in the "world" reads Quora? It's an extremely niche site that has walled

Exactly. Other than the tight-knit tech circle referred by sites like TechCrunch, who in the "world" reads Quora? It's an extremely niche site that has walled off all its content. Contrast that with Wikipedia, an extremely open site dedicated to sharing and growing the world's knowledge. Quora will be gone as soon as the money runs out.