Its to make Kpop concerts better for both fans and artists. Don't qoute me but its to basically prevent shit like TGM from happening and when joining you'll have a chance to volunteer at concerts.
In order for that to happen though, the group has to grow. We need a large amount of people in the Butterfly Project for companies to take us seriously enough to wanna work with us.
You can ask the admin Samantha more on it if you want.