By Mitchell Forde It’s rare for a superstar player to leave a pro sports team and not draw some ire from fans of that team. But that seems to be the case for former Carolina Panthers running back Christian McCaffrey. The Panthers dealt McCaffrey to the San Francisco 49ers in a blockbuster trade Thursday night. McCaffrey, in his sixth year as a Panther, then posted a heartfelt goodbye to Carolina on social media Friday morning. He seems to be getting nothing but love from Panthers fans. The well wishes illustrate that Panthers fans recognize the current dysfunction of their team. Carolina is 1-…