As per the Topic, is there any such list available here on the forum? As it seems to be the new hot thing making a bunch of these I'd like to see a list that shows perhaps the top 20 most active users per board or section on this forum.
In terms of activity per board broken down by user, I believe there is nothing available. A derivate alternative view would be the most merited user, or meriter user per board. Those can be seen on the
Merit Dashboard. Click on the "Rankings" tab and filter by subsection. You can also move the date filter slider to delimit the data to a specific period in time.