I know this has been suggested many times, but there are no current threads about this. It would be nice to have a plugin that tracks the amount of time you play on the server. Not only would it be cool to see how much you've played on the server, but you could also put that playtime in a moderator application. It would be great to add this with the server reset. Plugin: https://www.spigotmc.org/resources/playtime.44852/ (With this plugin each gamemode would have its own playtime data. If you want each server to be connected then a new plugin would have to be made)
The whole network would require a custom plugin with probably SQL interaction, as the spigot plugin you linked doesn't have bungee support.
Oh okay. If Noobcrew adds this then he’s probably going to use the spigot plugin. I updated the suggestion so that people know about this.