Yup. That's because they had actual competition in the space. Throwing a (bad) Slack clone for free was a way of preserving and extending their monopoly. But y

Yup. That's because they had actual competition in the space. Throwing a (bad) Slack clone for free was a way of preserving and extending their monopoly. But you're still paying for it. The costs to build and fund the product still exist, and are still coming out of customer payments. Manipulating their pricing to manipulate their customers doesn't change that.