por curiosidad, ?cómo el sistema suma los puntos de actividad del usuario?
What is the Activity Score?
The Activity Score measures your activity on the site in the last 30 days. It is calculated as follows:
Activity Score = Created LingQs+Learned LingQs+Words of Writing+(# of Events*60).
Manually entered Writing and Speaking numbers are not included in the Activity Score.
(from the help pages)