OpenAI's choice to announce revenue figures alongside a funding close is structurally deliberate: the $2 billion monthly number [1] serves as justification for an $852 billion valuation that places it alongside Berkshire Hathaway by market capitalization. What the announcement obscures is that the revenue concentration in enterprise means OpenAI's growth is exposed to B2B contract cycles, procurement freezes, and competitive displacement from Google and Microsoft in ways a broad consumer base would buffer against. The company's own 2030 projection of 220 million paying users is the number it needs…