Board Thread:General Discussion/@comment-5903643-20180322172607/@comment-168424-20180423172850

Discord took off because it has a decent voice options and gamers really like that. For just chat, it seems that Slack is the leader. Skype really went downhill a year or two after MS bought it, but that's a typical pattern for MS acquisitions as they tend to steal all the good people after about 2 years.