Topic-Centred, Not Personality-Centred

See moves README for orientation. This is the first design move.

The unit of organisation is the matter of common concern, not the user. Posts attach to topics, threads, or questions; user profiles are minimal and not the primary navigation.

• Why: Representational publicness centres the lord; deliberative publicness centres the issue. (See refeudalization-1962 for the original concept.)
• Cost: No virality through personality. Slower growth. Public figures find it less rewarding.