I sent a feedback about this, and Jens said he likes the idea, but has kindly asked to open a poll to gauge the community. In this game, as many games, you can play in solo or group, but it's clear you have more chance to survive as group, so, for fairness, why not adding in the leaderboard, a percentage of the time played in solo and group? To do this, i think is necessary adding a group system through the UI, but grouping with other players WILL NOT influence the gameplay by adding easy tools like radar to see your team mates or whatever. It would be just a system to show in the leaderboard, the time you have been grouped. I also tought would be nice adding a handshake emote to ask/accept a group, instead of the same horrible popup request you see in all games. Well, just vote. :)