Not exactly on topic, but If you are measuring something objective (like quantity of activity), and not something subjective (like quality of activity), you are usually better off using an objective test (like number of posts) instead of a subjective one (like a self-report Likert scale).
Maybe someone can do the database query again and post the result?
But pure number of posts (which I'd bet has increased) isn't the only criteria, or?
If it's worth saying, but not worth its own post (even in Discussion), then it goes here.
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