one of the wittiest startup tech companies in the biz, finding ways to integrate clever Easter eggs and playful features into its incredibly useful workplace messaging app. And now we know it's also a masterful shade-thrower, judging by the full page ad it just took out in the New York Times, "welcoming" Microsoft and its new collaboration software tool, Teams, to the scene. https://www.thrillist.com/tech/nation/slack-takes-out-ad-in-ny-times-welcoming-microsoft-teams/tech