He talked in detail about how his company is long-time user of Slack. He and his colleagues each agreed to the "no reverse engineering" terms when they signed u

He talked in detail about how his company is long-time user of Slack. He and his colleagues each agreed to the "no reverse engineering" terms when they signed up. Maybe the agreement isn't binding depending on his local jurisdiction, but it's unclear how he could use Slack without agreeing (or at least clicking "agree") to the terms.