Sorry, unfortunately I have not had any time to work on it more.
I need to convert it to using a real db table and not just user_meta
which I've determined would get overloaded on a very active forum.
If you don't care about losing existing transaction history by the next version (which is the part currently stored in user_meta) I could let you play with it as it is running here. Each user would still retain their totals after upgrading which may be acceptable to you?
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