base leaderboards on the past instead of the future

[chadwhitacre]

This would make the numbers less fuzzy.

ht @cmbeelby on #329

[sigmavirus24]

Why not have two leaderboards or at least the ability to toggle them?

Have last week's display and "next" week's display. It'll allow us to also track from week to week where people move in rankings. In eventuality, you could have possibly multiple leaderboards for each: "All time", "Month", "Last week", "This week". The names are self-explanatory but they'd be fun and informative. I know this is in relation to the fraud prevention milestone, but there's no reason a feature can't arise out of this as well ;)

[chadwhitacre]

https://www.youtube.com/watch?v=RV-Z1YwaOiw

We need more realtime feedback when showing active movement.