AMP founder @AnjneyMidha thinks GameStop CEO Ryan Cohen is onto something with his eBay bid. He says that eBay's 10K filing showed it spent $2.4B on marketing to acquire a million users, or $2,400/ user, in FY2025. "I don't think he's buying eBay because he thinks he's smarter than eBay's product team. I think he's buying eBay because he can see $2 billion of fat that Wall Street has been pricing as fixed costs. So he goes, 'Let me cut that, and the interest on the debt just pays for…