Its incredibly broken.I was just saying that leaderboards filter out players that haven't logged on in a certain amount of time
Some people are removed after a week, some after a month, and some I've seen have stayed up for half a year or more.
Their algorithm only counts logins, which is an incredibly irrelevant and misleading statistic.
If I literally log in for 1 second per week, the leaderboards would mark me as active.
Activitity is not amount of logins, its amount of time spent in game per session.
The company is very bad at doing things right, and even worse at redoing the things they got wrong.