┌──────────────────────────────┐
          + │                        ┌───x │
            │                    ┌───┘     │
quality     │                ┌───┘         │
of          │            ┌───┘             │
posts       │        ┌───┘                 │
            │    ┌───┘                     │
            │┌───┘                         │
            └┴─────────────────────────────┘
           -             time              +

Watch this space!

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