Please do not see in advance and please do not make news. Everybody in a team has some responsibility towards the job and community.
Pay it forward, when people are working under voluntary basis, we have to contribute to the society a bit, in any way we can.
Like a pot luck lunch or dinner, you bring your dish, no matter how small, big or grandoise it maybe. You cant go empty handed, and eat other's food. Not an edible etiquette.