Server /2 count and "heatmaps"
You can count the number of player in capital/in trade chat and you can track hours of activity based on that. In a new 'tsm features' tab.
It would be an extra useful thing that tsm could provide. It could count how many players are there each hours. Consolidating it with the app and showing it on the website ? That or locally only with player data, no sync. I don't know, that's just an idea for you to think about it :)
if synced, this can be used to have a way of comparing realm population sizes, a data that could be involved with tsm app to adapt some operations since the more players, the more demand is a safe assumption in my opinion. or maybe counting unique name on the ah api is better. I'll let you think :)