Easy onboarding Your new members learn how things work, by reading earlier questions and answers. The knowledge stays, when someone leaves. Insight and transparency Organize discussions into categories, one for each team in your organization. And see what each team is doing / talking about. (Except for private discussions) Reach the right people Post a question to a team, and the right people will answer. No need for email addresses or phone numbers. And you don't need to know exactly which person to contact, only which team.