Skype users bade farewell to the online communication service Monday, reminiscing about late-night calls with friends, long-distance dates and free catch-ups with far-flung family — along with pixelated faces and “Can you hear me?” moments. Microsoft, its owner, has shuttered the service to focus on its alternative calling service, Teams.The decision to scrap Skype, announced in March, caps a remarkable 21-year run for a software that for many embodied the early values of the open internet: It w...