Sorry but I am not familiar with the Discourse Chat much, what chat-events are we thinking about scoring?
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Sending a message, reacting to a message and your message being reacted to. But chat is only retained for 90 days by default so it will need to keep track of this for re-calcs.
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Thank you for the explanation!
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Just wanted to bump this and hope it can be added to the roadmap. 
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Somehow this PR never got merged. 
I just merged it! Thank you for letting us know!
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