Sure Wave gets a lot of hate but our team enjoyed it a lot. After it was shutdown we migrated to Hipchat, then Slack, and finally Keybase. It was positioned a

Sure Wave gets a lot of hate but our team enjoyed it a lot. After it was shutdown we migrated to Hipchat, then Slack, and finally Keybase. It was positioned as an 'email killer' - and as validated by Slack I think that was pretty clever and spot on marketing.