This is both an opportunity and a worry for marketers. Especially for those that are reliant on Facebook as a way to reach a lot or most of their marketing audience. They will start seeing a steep dive in their ROI as fewer people use the social media platform. It is, however, a great opportunity to begin using up-and-coming social networks before they become popular.
Because it's such a popular communication channel, it has wide-ranging integrations with plenty of other tools. You can tack on a seemingly unlimited amount of integrations and Slack applications to make the tool even more powerful -- for instance, many teams will pipe in A/B test results, analytics notifications, new customer or transaction notifications, or even sales or customer support bots. While undeniably powerful, Slack is easy to start using immediately.