Slack recommends organizing discussions into appropriate channels for clarity and relevance:
"Questions or discussions about specific projects should happen in project-related channels to maintain topic focus and ensure all relevant stakeholders can view and contribute."
#general should be reserved for organization-wide announcements or broad discussions, not for project- specific questions. DMing individuals (A, B) bypasses team collaboration. Deleting the message (C) is unnecessarily punitive.
(Reference: Slack Administration Study Guide - Best Practices for Channel Organization)
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