Big Tech earnings have come and gone. Well, save for Nvidia (NVDA), which reports on Nov. 19. That aside, one key trend emerging from this quarter's reports is that Wall Street largely likes what it's seeing when it comes to AI, despite increased spending among hyperscalers. Microsoft (MSFT), Google (GOOG, GOOGL), and Amazon (AMZN) each reported solid results last week on strong performances from their respective cloud businesses. The only problem? Companies that use their cloud services, like OpenAI (OPA ...