Some members post with much greater frequency than other members.
The voting weight is adjusted across weekly posting frequency. If somebody has 1 share and post 3x in a week, their upvote weight will be twice the weight given to somebody with 1 share but posting 6x in a week.
I checked your transactions and you should be 13 shares. This has been adjusted.
Thanks for the explanation, I think that makes sense and is a good way of doing it.
You're welcome.