Back in October 2021, PayPal (NASDAQ: PYPL) reportedly considered buying Pinterest (NYSE: PINS) for as much as $45 billion. Pinterest had already been expanding into the "social commerce" market with its shoppable pins, so PayPal could tether those merchants to its digital payments services. Unfortunately, its slowdown as the pandemic eased -- which was exacerbated by rising inflation and the final stages of its decoupling from eBay -- caused it to hastily abandon those ambitious targets last year.