To win.
NSEL is an esports team for the Nintendo Switch community. We all know that switch players are always getting made fun of or getting stomped on by the xbox and playstation players so this team is so switch players can play and compete alongside other switch players.
This team is no longer recruiting new players. You can either wait until their next recruitment campaign, or become premium to apply in their waiting list. This way, they'll be notified that you're interesting in joining them.